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Posted: 12/16/2025 8:30:15 AM EDT
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I tried a Kabuto drop in from supersafeco.com It runs great. I am concerned the printed selector will break or ear out - Do M-16 3-position safeties work on the Kabuto or modified to do so? I'd rather have metal. |
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Just looked at this. Never heard of it, but I would also be suspicious of a 3D printed lever. Not crazy about a nylon housing for the parts either. I’m assuming these are a 3 position FRT? I couldn’t find that info on the website. Might be wise to pick a known good manufacturer at this point. At that price point you could get a Grey Market Super Safety. |
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Originally Posted By jaqufrost: Got a picture of the safety?  From the website. He says it's carbon fiber print media - I do feel better about metal and he is now offering the metal housings. I tried it in two different guns (he gave two safeties when I ordered) works like a charm in a Radical receiver Build and a Bad Attitude A1. I like the device but want it to possibly last a long time in case they get banned from further manufacture, etc. |
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IIRC these don't use an M16 safety, it's basically a semi-auto safety with a bit of reprofiling/cutting on the inner shelf area to interact with the other parts, and also a detent for engaging in the 180-degree position. KAK makes a semi safety with the 3rd position detent, and there is a printable jig you can use to file down the shelf to make it work. |
This guy mods standard 2 pos to 3 pos and then reprofiles the interface of the bar. Two Position to Three Position Kabuto Safety With a Dremel I’m going this route…depends on how it runs this weekend. |
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Originally Posted By TKLOL: This guy mods standard 2 pos to 3 pos and then reprofiles the interface of the bar.  https://www.youtube.com/watch?v=duL2nPcRdTsI’m going this route…depends on how it runs this weekend. Clever, I hope it works - I have some left over selectors I could try. I don't have diamond bits, but will get a set. |
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I have confirmed that as I said before a 3 position safety that has the cutout and detent to allow switching to the 3rd position for semiautomatic fire will work with the Kabuto that I have. In the first position its safe as expected, the second position allows the trigger pressure foot to kick forward and not reset the trigger, in the third position the safety keeps the trigger pressure foot from kicking forward and causes forced reset. |
| I have been printing the selectors and Kabutos with Fiberon PET-CF filament and have had really good results so far. I've been printing the Mini Housings with the levers and activators in the same filament. I have a Gforce Jawbone that I've been playing with the Kabuto that I've run over 500 rounds through the printed mini housing and parts with no adverse effects. Runs like a sewing machine, I think it depends a lot on the quality of print and the filament material used. I'm sure I'll get close to 2000 rounds with the printed parts I'm using and when they fail, I have a few dozen more, lol. |
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Originally Posted By jduke: I have confirmed that as I said before a 3 position safety that has the cutout and detent to allow switching to the 3rd position for semiautomatic fire will work with the Kabuto that I have. In the first position its safe as expected, the second position allows the trigger pressure foot to kick forward and not reset the trigger, in the third position the safety keeps the trigger pressure foot from kicking forward and causes forced reset. Did you use a regular mil spec 3 position safety or the safe semi semi? |
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Originally Posted By KAC17: Did you use a regular mil spec 3 position safety or the safe semi semi? The Kak safe semi semi works with the Kabuto. The rear leg of the kabuto needs a place to slide forward into in the second position. When in the 3rd position the rounded part of the safety keeps that leg from canting forward engaging the trigger reset. I have not tried a mil spec 3 position safety. |
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Originally Posted By SRT8ROLLING: The BS Squirts ARSS15 looks a lot like the Kabuto mini. Can you use a unmodified KAK 3 position semi auto selector in the Kabuto? Will the mini fit in something with a M16 pocket? They promise drop in no fitting or modification needed, in the first line of their web page, I immediately don’t believe them. With all the different triggers out there in AR’s there is no such thing. The mini doesn’t need a modified pocket as far as I can tell. |
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Originally Posted By eddster: I ordered a Schmid 3 position M16 selector plus a mini Kabuto to see if it will work with an ALG ACT or BCM PNT (w/ super safety cut). I will update here once the parts come in. I also have ordered a 3-position M16 selector, a full-size Kabuto, and some JB Weld. I plan to use the JB Weld to fill any necessary areas, as I can easily file the material back down to fit as needed. I decided on the 3-position selector because the grooves and the divot for the third position are already present. I figured this would be the best approach, as those features would be the most difficult parts to modify if I were to attempt to adapt my own 2-position selector. I also wanted to share an update I received from Super Safe Solutions regarding the SSA-E X in my lower. According to a message from them, the Geissele SSA-E shouldn't require any modifications for the drop-in and it will work with the Kabuto. Additionally, they mentioned that they will be restocking metal safeties soon and are just waiting for the right time to list them on their site. EDIT: I'll update how things went with the install and initial testing. |
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Try looking here: Affordable 2A. He sells an all metal kit that comes with a 3 position selector. I've got a couple, his instructions worked for me. |
Anyone see this modification of the Kabuto design (the U-DIS) that was released recently? The wide compatibility and ability to print/select different sizes to tune seems attractive. All I have is PLA+ to print with, so not sure I can home-brew my own to check it out. Reddit Link: U-DIS (Universal Drop In System) Geissele, LaRue, Schmid, milspec, CMC, Rise armament trigger and M16 safety compatible Files are on the odd sea. |
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Originally Posted By Steamedliver: How do I get started with a Kabuto? Is there a basics guide for me to look at? I got mine from Dogwood armory. Attached File |
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Originally Posted By MudEagle: Isn't their position held by the cutout in the bottom of the upper-receiver that is that same oval-ish shape? I think the longer models that hook around the front hammer will fit more universally. |
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Originally Posted By HazMatt90: I'm going to look at the KAK safety as well but I have to say, I'm WILDLY impressed with how well this runs even when completely printed in PETG. AR-15 cut lower. Rifle length. 16" barrel. Just wow. Good thing I bought that privi ammo cheap 
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Update: not a ton of rounds through the PETG Kabuto, but I picked up some Fiberon PET-CF17 and printed some in that. I can really feel the increase in strength. Also, that UDIS pack has a fantastic short throw ambi safety with multiple length options. It almost feels like metal in the gun. Now, do I buy a D 60? Or do I attempt to save my wallet by limiting myself to standard capacity mags? |
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Originally Posted By HazMatt90: Update: not a ton of rounds through the PETG Kabuto, but I picked up some Fiberon PET-CF17 and printed some in that. I can really feel the increase in strength. Also, that UDIS pack has a fantastic short throw ambi safety with multiple length options. It almost feels like metal in the gun. Now, do I buy a D 60? Or do I attempt to save my wallet by limiting myself to standard capacity mags? |
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| I have tried a plastic framed full size Kabuto, and an all metal mini Kabuto, and both failed differently. I just installed an all metal full size, from Affordable 2A Prints. It seems to dry fire far more smoothly, I'm hoping to test fire tomorrow. |
It was not preached to the crowd,
It was not taught by the State.
No man spoke it aloud,
When the English began to hate.
It was not taught by the State.
No man spoke it aloud,
When the English began to hate.
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Originally Posted By ELittlefield: I have tried a plastic framed full size Kabuto, and an all metal mini Kabuto, and both failed differently. I just installed an all metal full size, from Affordable 2A Prints. It seems to dry fire far more smoothly, I'm hoping to test fire tomorrow. @ELittlefield, good luck! |
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I beg to report complete success. I am seriously impressed with this Affordable2APrints unit. The quality is excellent, and it is able to drop in easily and be removed in a few seconds. It's slightly, slightly slower to install and remove than the Arizona Regulator, and in exchange you don't have a third position that disables the disconnector. You just have a Safe Semi Semi selector, if I understand correctly. I like it considerably more than the Arizona Regulator 3 position. Outstanding product. |
It was not preached to the crowd,
It was not taught by the State.
No man spoke it aloud,
When the English began to hate.
It was not taught by the State.
No man spoke it aloud,
When the English began to hate.
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I printed a couple RAD’s I found on guncad. I printed in some pla-cf I had laying around. It worked in an lwrc m6ic I had laying around. I didn’t install a 3 position selector so it was safe/frt only. Worked for a mag or two but it was getting light primer strikes after 10 rounds, so probably needed a better hammer spring. I need to get some more advanced filament for these. They do work and use very little filament. |
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Originally Posted By ELittlefield: I beg to report complete success. I am seriously impressed with this Affordable2APrints unit. The quality is excellent, and it is able to drop in easily and be removed in a few seconds. It's slightly, slightly slower to install and remove than the Arizona Regulator, and in exchange you don't have a third position that disables the disconnector. You just have a Safe Semi Semi selector, if I understand correctly. I like it considerably more than the Arizona Regulator 3 position. Outstanding product. @ELittlefield not that I’m unhappy with my arcfires, but let me know when a metal 3 position is available that is compatible with a stock Geissele trigger and a genuine milspec 3 position trigger |
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Originally Posted By jaqufrost: They need a AR15 cut lower, M16 cut doesn't hold them in the right spot. A standard AR15 selector gives safe/frt. M16 selector or modified AR15 selector gives safe/semi/frt. I got mine from Dogwood armory. https://www.ar15.com/media/mediaFiles/57761/1000024350_jpg-3761081.JPG Ordered mine from same place as you. Got a m16 selector from datum machine. Was installed in a H&R m16 clone. Did not work. The crummy 3d printed Saftey did work but was tight and super janky looking. Was hoping for a clone correct build. So is it confirmed the KAK safety linked Hereworks? |
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Originally Posted By swampfoxoutdoors: Ordered mine from same place as you. Got a m16 selector from datum machine. Was installed in a H&R m16 clone. Did not work. The crummy 3d printed Saftey did work but was tight and super janky looking. Was hoping for a clone correct build. So is it confirmed the KAK safety linked Hereworks? You can do it to a regular semi safety too, but it's much more material to remove. |
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Originally Posted By D_Man: IIRC, if you use either that KAK safety or the M16 one, you have to modify it a bit. There's printable jigs you can put them in and file down a bit to get it there. You can do it to a regular semi safety too, but it's much more material to remove. 10-4 no access to a 3 d printer. So needing a turn key part. |
 More In Depth Kabuto Tuning Did find this as well. Two Position to Three Position Kabuto Safety With a Dremel |
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Originally Posted By ELittlefield: I beg to report complete success. I am seriously impressed with this Affordable2APrints unit. The quality is excellent, and it is able to drop in easily and be removed in a few seconds. It's slightly, slightly slower to install and remove than the Arizona Regulator, and in exchange you don't have a third position that disables the disconnector. You just have a Safe Semi Semi selector, if I understand correctly. I like it considerably more than the Arizona Regulator 3 position. Outstanding product. Now that you've tried that whats you list of your favorites I order? @ELittlefield |
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