[ARCHIVED THREAD] - Current 3 position FRT options (Page 1 of 2)
Posted: 2/28/2026 11:07:03 AM EDT
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When you guys go to a gun show these days, what are the 3 position AR FRTs you see available? Prices, best options, models to avoid? The market seems to have exploded recently. |
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TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. |
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Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. I hope you have this saved somewhere so you can copy/paste it in every FRT thread lol. |
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Quoted: I hope you have this saved somewhere so you can copy/paste it in every FRT thread lol. Quoted: Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. I hope you have this saved somewhere so you can copy/paste it in every FRT thread lol. Haha yep! And I'm tweaking it as I learn and shoot more. |
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Quoted: Haha yep! And I'm tweaking it as I learn and shoot more. Quoted: Quoted: Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. I hope you have this saved somewhere so you can copy/paste it in every FRT thread lol. Haha yep! And I'm tweaking it as I learn and shoot more. 
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Quoted: My two functioned perfectly with BCM triggers. No hacking required. Quoted: Quoted: If you get an Atrius, and you're not a hack, the right side of the trigger shelf gets cut for safety function. The left side gets cut for the 'special' mode. My two functioned perfectly with BCM triggers. No hacking required. Have you done the hammer press test, in order to ensure you won't have broken levers? With the upper off the lower, put the selector in the FRT position, press the hammer back/down, and swing the trip lever through its travel arc. You should experience no binding. If you have binding, you should trim the tail of your trigger, or you may break the lever during the recoil cycle prematurely. |
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My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. |
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Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? |
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Quoted: Can you describe the way your ARC-Fire fails to run? Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. |
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Quoted: Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Quoted: Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Are you positive you have a buffer with sliding tungsten weights? |
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Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. This should be thumb tacked at the top of the GD page to cut down on these dupe FRT threads… |
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Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is "good." It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. |
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Quoted: Are you positive you have a buffer with sliding tungsten weights? Quoted: Quoted: Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Are you positive you have a buffer with sliding tungsten weights? Running an Odin works adjustable buffer set at 5.2 or 5.3 oz. |
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Quoted: Running an Odin works adjustable buffer set at 5.2 or 5.3 oz. Quoted: Quoted: Quoted: Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Are you positive you have a buffer with sliding tungsten weights? Running an Odin works adjustable buffer set at 5.2 or 5.3 oz. I'm not familiar with that one myself, but I recall talk from a few months ago about it causing trouble. Try it again with an H3 buffer, with 3 tungsten weights. A cheaper option is the Tromix 2 piece H3 buffer, which has the same amount of reciprocating mass but no tungsten. |
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I'm pretty happy with my Partisan and I've tried everything on the market, I do belive. https://www.artakedowntool.com?sca_ref=10727925.5hEKXcOPUp $20 off and a free takedown tool with code STERLING20OFF |
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Quoted: Yep, FPNI. It is the best I've used thus far, I dont know where I'd improve upon it. Quoted: Quoted: FPNI. Arc-fire with a Geissele can’t be beat. Yep, FPNI. It is the best I've used thus far, I dont know where I'd improve upon it. I'd make it a 45/90 selector.  https://www.ar15.com/forums/general/The-best-FRT-on-the-market-just-got-better-ARC-Fire-V2-/5-2830727/ |
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Quoted: Just so you're aware, Gorton87 on this site offers ambi selectors. Just PM him. Quoted: Quoted: Just shot my partisan today. Worked as advertised (11.5, without and with suppressor,G H3 and spring). I'm a lefty so wanting an ambi selector, but fine for now Just so you're aware, Gorton87 on this site offers ambi selectors. Just PM him. Terrific. Thanks for the info 
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Quoted: I'm not familiar with that one myself, but I recall talk from a few months ago about it causing trouble. Try it again with an H3 buffer, with 3 tungsten weights. A cheaper option is the Tromix 2 piece H3 buffer, which has the same amount of reciprocating mass but no tungsten. Quoted: Quoted: Quoted: Quoted: Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Are you positive you have a buffer with sliding tungsten weights? Running an Odin works adjustable buffer set at 5.2 or 5.3 oz. I'm not familiar with that one myself, but I recall talk from a few months ago about it causing trouble. Try it again with an H3 buffer, with 3 tungsten weights. A cheaper option is the Tromix 2 piece H3 buffer, which has the same amount of reciprocating mass but no tungsten. I ran down the rabbit hole on h3 buffers and I found a post saying the Odin works adjustable buffer doesn’t work well with a frt, so I’ll try atungsten one next. And damn, tungsten got expensive recently. LOL Thanks for the help. |
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Quoted: The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. When you say the semi trigger pull is poor, is this just because it's a basic milspec trigger in a market where cheap, drop-in match triggers are so common, or is there something particular about the Regulator itself that makes the pull worse? |
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Quoted: TL;DR: AS Designs ARC-Fire with Geissele, lever blocker, and upgraded selectors is the best FRT on the market. The Rare Breed FRT15-L3 is probably the simplest, and legally strongest one to get. It's 450 bucks. It has a 3 position selector, giving you Safe, Semi auto, and FRT modes, much like an M16. Rare Breed has an explicit agreement with the Feds that their trigger is NOT a machine gun. It drops into most AR lowers, with no filing or cutting of the fire control components needed. It will run with an H3 buffer in most guns. It is not sensitive to slight variations in how the trigger holes are drilled, or other dimensions in AR receivers that were never intended to be critical dimensions. This company also sues the other companies, and does the bidding of Daddy ATF. The Partisan Disruptor is extremely similar to the Rare Breed. It basically functions the same way for 250-350 bucks, and they are based gigachads in comparison to Rare Breed. They've had a couple of stumbles out of the gate with quality control, but they are exceptionally responsive to the customers, and are fighting the good fight for our rights. The Hoffman Super Safety is the cheapest AR FRT. It's between 50 and 150 bucks, made by many different companies. It gives you a push button safety, with 3 positions from left to right: Safe, FRT, and Semi. It requires a modified trigger, which you can do yourself or buy for low cost. It works well, and is the least sensitive to buffer weight of all the FRTs I have tested, though it's probably a good idea to throw an H2 or H3 in there just to be sure. Many different triggers can be modified to be used with the Hoffman, including the excellent and inexpensive Larue MBT 2 stage. The Atrius Super Selektor is about 200 bucks, and it works well after you modify your USGI trigger. We can go into how that's done in more detail later, but the upshot is that it's fairly inexpensive, has a 3 position lever selector, and works fairly well if you know what you're doing. You will need an H2 or H3 buffer. It can be paired with the Rise Armament Rave 140, which is a single stage cassette style trigger. This comination works exceptionally well in 22 LR builds. The Cornfire MARC is about 200 bucks, it's basically the same as an Atrius, but it was advertised initially to work with an unmodified Geissele SSA and Larue MBT 2 stage triggers. This is no longer true. But it CAN work with a Geissele trigger. I say CAN work, because I bought two of them, and they dropped right into two of my lowers that have Geissele triggers, and they do run properly. However, I tried installing one of them into a third lower with a Geissele, and it did not work. Cornfire no longer advertises that it will drop in and run with a Geissele, and has published a guide on how to make it work with the MBT 2 stage. I have not attempted this yet. You will need an H2 or H3 buffer and if using a Geissele or MBT you will need a lever blocker, which I can explain later. The Arizona Regulator 2 position: 240 bucks, it's a little module that drops right into your gun and turns it into an FRT gun, with no standard semi auto mode. You can get them for USGI triggers, for the Larue MBT 2 stage, and for certain Geissele triggers, depending on when your trigger was manufactured. You will need an H2 or H3 (he recommends H3) buffer. The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. The AS Designs ARC-Fire: This may be the best of the bunch. It's 250 bucks, when in stock. It has an ambidextrous 3 position lever selector. It comes with a USGI style trigger (only the trigger, you supply the disconnector and hammer), and it does not rely on a spring like the Atrius and Cornfire to get the trip lever in position. In stock configuration, the trigger pull is “good.” It does not have trigger slap in semi auto mode. With a Geissele cut trigger, it is the best FRT on the market. I recommend buying the 30 dollar upgrade "mil spec" selector levers. In March, they are coming out with a Version 2, which will have the option for a 0/45/90 degree selector, rather than the standard 0/90/180. Thanks. |
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Does anyone have pictures of the Atrius installed? I saw one at a gun show and the selector stuck out from the left of the gun and “centering” of the lever on the hammer looked odd. It was in some sketchy little bags and if you looked close some had a burr on the part of the selector that goes into the receiver. Are there counterfeits or is that how they look? Also, what are the trigger hacks mentioned above? |
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Quoted: If you get an Atrius, and you're not a hack, the right side of the trigger shelf gets cut for safety function. The left side gets cut for the 'special' mode. Not according to Atrius. It might require minor filing on the tail of the trigger shoe. Of the 3 I own none did and are drop in. |
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Quoted: When you say the semi trigger pull is poor, is this just because it's a basic milspec trigger in a market where cheap, drop-in match triggers are so common, or is there something particular about the Regulator itself that makes the pull worse? I got to try one out on the range this weekend. There was a guy there that had one and it was not functioning in his upper for him. It would fire forced reset even on semi. We put it in my rifle and it function just fine semi, and force reset. The semi auto function doesn’t seem too bad as far as a trigger pull, but it does slap you just like when it is in forced reset mode so it’s kind of a weird feeling trigger as far as the reset goes in semi. In forced reset you hardly notice it. |
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Quoted: I got to try one out on the range this weekend. There was a guy there that had one and it was not functioning in his upper for him. It would fire forced reset even on semi. We put it in my rifle and it function just fine semi, and force reset. The semi auto function doesn’t seem too bad as far as a trigger pull, but it does slap you just like when it is in forced reset mode so it’s kind of a weird feeling trigger as far as the reset goes in semi. In forced reset you hardly notice it. Appreciated. I'm looking to get a 3 position Regulator for an M16A2 build that I'm starting. I want an FRT that keeps as much of the original milspec FCG as possible for cloner-nerd purposes so rather avoid ones that come as a cassette. On the topic of A2s, is there any word on if the Burst Regulator will have that annoying A2 characteristic of not resetting the burst counter when the trigger is released or will it work more like an HK burst? |
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Quoted: I ran down the rabbit hole on h3 buffers and I found a post saying the Odin works adjustable buffer doesn’t work well with a frt, so I’ll try atungsten one next. And damn, tungsten got expensive recently. LOL Thanks for the help. Quoted: Quoted: Quoted: Quoted: Quoted: Quoted: Quoted: My atrius ran easily whereas my arcfire in both an AR and mp5 still does not run. I am just now running down the rabbit hole to get the arcfire to work but have been unhappy with it to date. Atrius was plug and play. I have an adjustable weight buffer, an extra power recoil spring, adjustable gas block, and am now getting an extra power hammer spring. Bottom line, they take some finesse to get to run but maybe that’s half the fun. Can you describe the way your ARC-Fire fails to run? Light primer strikes are always the issue. Even with a heavy buffer and extra power recoil spring. Normally I’d be playing more with it but it’s cold out right now and it just takes all rhe fun out of it. -20 right now. Hahaha I was gonna try an enhanced hammer spring next. Are you positive you have a buffer with sliding tungsten weights? Running an Odin works adjustable buffer set at 5.2 or 5.3 oz. I'm not familiar with that one myself, but I recall talk from a few months ago about it causing trouble. Try it again with an H3 buffer, with 3 tungsten weights. A cheaper option is the Tromix 2 piece H3 buffer, which has the same amount of reciprocating mass but no tungsten. I ran down the rabbit hole on h3 buffers and I found a post saying the Odin works adjustable buffer doesn’t work well with a frt, so I’ll try atungsten one next. And damn, tungsten got expensive recently. LOL Thanks for the help. Yeah Tungsten prices are full retard right now. I think that Tromix 2 piece is a great alternative... same amount of reciprocating mass, but without needing to fit it all into a tiny volume. |
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Quoted: When you say the semi trigger pull is poor, is this just because it's a basic milspec trigger in a market where cheap, drop-in match triggers are so common, or is there something particular about the Regulator itself that makes the pull worse? Quoted: Quoted: The Arizona Regulator 3 position: 290 bucks. It comes with a USGI style fire control group, as well as a regulator module. It's a 3 position lever selector. It works extremely well, and has been analyzed by firearms law experts on this site to confirm its legality. The semi auto trigger pull is poor, but the design works extremely well. When you say the semi trigger pull is poor, is this just because it's a basic milspec trigger in a market where cheap, drop-in match triggers are so common, or is there something particular about the Regulator itself that makes the pull worse? It's a mediocre mil spec pull, plus it slaps your trigger finger a small amount when in semi mode, just like it does in FRT mode. Not enough to matter for mag dumping into garbage (which I dearly love) but we're truly spoiled in today's age of match triggers. |
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Quoted: Appreciated. I'm looking to get a 3 position Regulator for an M16A2 build that I'm starting. I want an FRT that keeps as much of the original milspec FCG as possible for cloner-nerd purposes so rather avoid ones that come as a cassette. On the topic of A2s, is there any word on if the Burst Regulator will have that annoying A2 characteristic of not resetting the burst counter when the trigger is released or will it work more like an HK burst? Quoted: Quoted: I got to try one out on the range this weekend. There was a guy there that had one and it was not functioning in his upper for him. It would fire forced reset even on semi. We put it in my rifle and it function just fine semi, and force reset. The semi auto function doesn’t seem too bad as far as a trigger pull, but it does slap you just like when it is in forced reset mode so it’s kind of a weird feeling trigger as far as the reset goes in semi. In forced reset you hardly notice it. Appreciated. I'm looking to get a 3 position Regulator for an M16A2 build that I'm starting. I want an FRT that keeps as much of the original milspec FCG as possible for cloner-nerd purposes so rather avoid ones that come as a cassette. On the topic of A2s, is there any word on if the Burst Regulator will have that annoying A2 characteristic of not resetting the burst counter when the trigger is released or will it work more like an HK burst? The Arizona Regulator 3 round burst seems to be on the back burner. In the last month or so though, the Stuff and Things CARL came out, which is a 3 round burst limiter for lever style FRTs like the ARC-Fire, Atrius, Cornfire, and Hoffman. It's sort of a halfway improvement on the M16A2 mechanism... it DOES have a memory, so if you fire one shot, you have 2 left on the cam before it resets, but it also has a consistent trigger pull. It doesn't give you 3 different trigger pulls depending on how many rounds are left in your burst. The CARL mechanism replaces your disconnector, and your mil spec hammer. Not compatible with the AZR unfortunately. I'm a clone guy, and most of my clones have AZR 3Ps in them. It's a great mechanism. https://www.ar15.com/forums/ar-15/It-s-happening-Everybody-stay-calm-STAY-F-ING-CALM-The-three-round-burst-is-here-/130-792693/? |
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Quoted: Another vote here for the AS Designs Arc-Fire. I have a few working amazingly well with the trigger they supply with their kit. I imagine the Geissele trigger option makes them even sweeter. Most of my lowers have the LaRue MBT in them. Any idea why the AS is incompatible? |
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Quoted: Most of my lowers have the LaRue MBT in them. Any idea why the AS is incompatible? Quoted: Quoted: Another vote here for the AS Designs Arc-Fire. I have a few working amazingly well with the trigger they supply with their kit. I imagine the Geissele trigger option makes them even sweeter. Most of my lowers have the LaRue MBT in them. Any idea why the AS is incompatible? The hook that holds down the first stage spring sits too far back. This is me pressing forward on the lever, this is as far as it goes.  " /> " />
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Quoted: I'm not familiar with that one myself, but I recall talk from a few months ago about it causing trouble. Try it again with an H3 buffer, with 3 tungsten weights. A cheaper option is the Tromix 2 piece H3 buffer, which has the same amount of reciprocating mass but no tungsten. |
 Cornfire Arsenal MARC Fun I like my Cornfire MARCs. I have a couple, I've also installed a few for friends/family. They seem to work just fine. |