User Panel
Collars can be made that leave the back of the can flush with the back of the collar.
|
|
|
I imagine this question or something similar has been asked, but I can only read 101 pages as quick as my eyes let me so here goes.
I’m looking at doing a Gordy-esque build with a spare receiver set I have on hand. I know most people use a 12.5” gov barrel with carbine gas length for the collar. Is it possible to use a 14.5” gov barrel with a mid length gas setup? And if so what barrel manufacturers are typically good to go for fitting the collar without any modification? Thanks in advance for the help. |
|
|
Originally Posted By Ryan_Scott: Collars can be made that leave the back of the can flush with the back of the collar. View Quote Good to know. I wasn’t sure if there was some kind of minimum length needed behind it. Maybe the best course of action is to install the 308 barrel back in the rifle, mark where the upper ends and let ADCO cut it to 16” then reverse engineer the correct collar length. With 2.7725ish inches do work with it should be doable, right? |
|
|
Originally Posted By Mblades: Good to know. I wasn’t sure if there was some kind of minimum length needed behind it. Maybe the best course of action is to install the 308 barrel back in the rifle, mark where the upper ends and let ADCO cut it to 16” then reverse engineer the correct collar length. With 2.7725ish inches do work with it should be doable, right? View Quote As much as I like OPS, I wouldn’t try to make it what it isn’t and I wouldn’t put it on a gun as backpressure intolerant as a 6.5 SCAR. If I had one of those I’d be waiting for a 7.62 RC3. |
|
|
Has anyone ever seen an M4-S on the secondary market? What did it go for?
|
|
|
Originally Posted By Ryan_Scott: As much as I like OPS, I wouldn’t try to make it what it isn’t and I wouldn’t put it on a gun as backpressure intolerant as a 6.5 SCAR. If I had one of those I’d be waiting for a 7.62 RC3. View Quote View All Quotes View All Quotes Originally Posted By Ryan_Scott: Originally Posted By Mblades: Good to know. I wasn’t sure if there was some kind of minimum length needed behind it. Maybe the best course of action is to install the 308 barrel back in the rifle, mark where the upper ends and let ADCO cut it to 16” then reverse engineer the correct collar length. With 2.7725ish inches do work with it should be doable, right? As much as I like OPS, I wouldn’t try to make it what it isn’t and I wouldn’t put it on a gun as backpressure intolerant as a 6.5 SCAR. If I had one of those I’d be waiting for a 7.62 RC3. It’s going on the 7.62 barrel. It will be run suppresses 100% of the time so I have no issue changing out the gas control screw to something optimal. |
|
|
"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
|
View Quote Clean! |
|
|
View Quote View All Quotes View All Quotes Originally Posted By SchlaffTablett: Originally Posted By Ryan_Scott: Collars can be made that leave the back of the can flush with the back of the collar. Here's one from a few years ago. https://i.imgur.com/T2FaySV.jpg That looks great. |
|
|
Not a Tennessee Squire
|
Allegheny Arms folks:
Any chance we'll ever see these tapered gas blocks in .625? Would love to make a build with a Criterion Core |
|
|
Never should have stumbled on to this thread lol
Looking for some advice. I currently have a 16 inch Noveske middy and a 13.5 inch Mk4. If I send that barrel to Adco, get the collar work done, will I be flush fit or what would it take for me to be flush fit? Would I need to cut the barrel down and use one of the AA gas blocks. Sorry if this has been beat to death. Thanks! |
|
|
Originally Posted By Dagger727: Never should have stumbled on to this thread lol Looking for some advice. I currently have a 16 inch Noveske middy and a 13.5 inch Mk4. If I send that barrel to Adco, get the collar work done, will I be flush fit or what would it take for me to be flush fit? Would I need to cut the barrel down and use one of the AA gas blocks. Sorry if this has been beat to death. Thanks! View Quote Why not just send it to Allegheny and have them do it? They probably know what they're doing lol |
|
|
Originally Posted By slowkota1: Why not just send it to Allegheny and have them do it? They probably know what they're doing lol View Quote View All Quotes View All Quotes Originally Posted By slowkota1: Originally Posted By Dagger727: Never should have stumbled on to this thread lol Looking for some advice. I currently have a 16 inch Noveske middy and a 13.5 inch Mk4. If I send that barrel to Adco, get the collar work done, will I be flush fit or what would it take for me to be flush fit? Would I need to cut the barrel down and use one of the AA gas blocks. Sorry if this has been beat to death. Thanks! Why not just send it to Allegheny and have them do it? They probably know what they're doing lol Not opposed to this lol. I just want to know exactly what to ask for. |
|
|
Originally Posted By dblazevich: Allegheny Arms folks: Any chance we'll ever see these tapered gas blocks in .625? Would love to make a build with a Criterion Core View Quote View All Quotes View All Quotes Originally Posted By dblazevich: Allegheny Arms folks: Any chance we'll ever see these tapered gas blocks in .625? Would love to make a build with a Criterion Core What the hell? I can get a batch on the board for the next time we run them. Not sure when that's going to be right now but I'll see what I can do. Originally Posted By Dagger727: Not opposed to this lol. I just want to know exactly what to ask for. So to use our gas block, you'd need a new rail and to have the barrel cut regardless of the mount length (you didn't say which can you had). If you want to use the block on a mid gas, you'll have to get a rail that is not more than 10.375 from the receiver. We'd be happy to help but the rail you have now is a no-go. |
|
"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
|
Originally Posted By towerofpower94: That’s awesome. Build details, if you please? View Quote View All Quotes View All Quotes Originally Posted By towerofpower94: Originally Posted By Bringo: Did someone say mini mk12? https://live.staticflickr.com/65535/53546934917_e3d9e62f07_c.jpg That’s awesome. Build details, if you please? Thanks all. I'm sorry I posted and ghosted. It is the quietest 5.56 setup I have! - Basic 12.5" BA barrel that Mr. Allen fitted a custom M4 collar to. - AEM4 suppressor - PRI TOOB - Tano milspec upper - Brown BCM BCG - Tano Badger CH - Tano lower with FCD and ALG Defense lower bits - Geissele Super National Match trigger - Coyote Sopmod stock - Taupe SR25 grip - Blue Force Gear desert digital sling +Schmidt and Bender 1.5-8x24 ShortDot in a Badger C1 1.54" mount with an Aimpoint T2 in the C1 offset mount With light and laser it is pretty piggy, but without the extras, it's actually handy. The scope is not nearly as heavy as it looks and it better not be...It was pricey when I bought it 4 years ago; I don't even want to know what it would cost today. It shoots well enough that I don't want to send Ron another barrel for a custom collar just yet. Unless he just needs more work |
|
|
Originally Posted By Bringo: Thanks all. I'm sorry I posted and ghosted. It is the quietest 5.56 setup I have! https://live.staticflickr.com/65535/52777339353_a13d19e3d4_b.jpg https://live.staticflickr.com/65535/52777330180_4f59448035_b.jpg - Basic 12.5" BA barrel that Mr. Allen fitted a custom M4 collar to. - AEM4 suppressor - PRI TOOB - Tano milspec upper - Brown BCM BCG - Tano Badger CH - Tano lower with FCD and ALG Defense lower bits - Geissele Super National Match trigger - Coyote Sopmod stock - Taupe SR25 grip - Blue Force Gear desert digital sling +Schmidt and Bender 1.5-8x24 ShortDot in a Badger C1 1.54" mount with an Aimpoint T2 in the C1 offset mount With light and laser it is pretty piggy, but without the extras, it's actually handy. The scope is not nearly as heavy as it looks and it better not be...It was pricey when I bought it 4 years ago; I don't even want to know what it would cost today. It shoots well enough that I don't want to send Ron another barrel for a custom collar just yet. Unless he just needs more work View Quote I know this isn't GD, but I'm going to say it anyways... That rifle fucks! Good lord 😍 |
|
|
Originally Posted By SchlaffTablett: So to use our gas block, you'd need a new rail and to have the barrel cut regardless of the mount length (you didn't say which can you had). If you want to use the block on a mid gas, you'll have to get a rail that is not more than 10.375 from the receiver. We'd be happy to help but the rail you have now is a no-go. View Quote I’m purchasing an OCM5 this week. Are there rails that will allow me to go longer with the can fit under? Also, what length will the barrel need to be cut to? Thanks! |
|
|
Oh I’m sorry, I thought this was America!
MI, USA
|
Someone needs to start an OCM5 thread so we don’t have to hear anymore about them in Ron’s thread
|
|
Originally Posted By Rothperson87: Someone needs to start an OCM5 thread so we don’t have to hear anymore about them in Ron’s thread View Quote Not trying to hijack. I’d get an AEM5 but my local dealer doesn’t have them in stock. I’ll end up with one of those eventually but this is where the journey starts. Regardless, the mounting patterns are the same so this should be a valid forum. |
|
|
Originally Posted By bradpierson26:
So I know you're a SF whore . . . . . |
Oh I’m sorry, I thought this was America!
MI, USA
|
Originally Posted By Dagger727: Not trying to hijack. I’d get an AEM5 but my local dealer doesn’t have them in stock. I’ll end up with one of those eventually but this is where the journey starts. Regardless, the mounting patterns are the same so this should be a valid forum. View Quote Here |
|
View Quote Well that’s cheaper than the OCM5 that I was getting anyway. Thanks for the link. Hopefully my FFL doesn’t gouge me on NFA transfers lol |
|
|
Oh I’m sorry, I thought this was America!
MI, USA
|
|
|
Originally Posted By Dagger727: Well that’s cheaper than the OCM5 that I was getting anyway. Thanks for the link. Hopefully my FFL doesn’t gouge me on NFA transfers lol View Quote View All Quotes View All Quotes Originally Posted By Dagger727: Well that’s cheaper than the OCM5 that I was getting anyway. Thanks for the link. Hopefully my FFL doesn’t gouge me on NFA transfers lol That’s the problem I’m finding. I got an ocm5 for 760ish from silebcershop with no transfer fees. But every dealer around me charges minimum $100 to transfer any nfa item. Also the OCM5 is stupid quiet. My gun is very heavy so I was glad to save the weight over the aem5. YMMV |
|
|
Originally Posted By slowkota1: I know this isn't GD, but I'm going to say it anyways... That rifle fucks! Good lord 😍 View Quote View All Quotes View All Quotes Originally Posted By slowkota1: Originally Posted By Bringo: Thanks all. I'm sorry I posted and ghosted. It is the quietest 5.56 setup I have! https://live.staticflickr.com/65535/52777339353_a13d19e3d4_b.jpg https://live.staticflickr.com/65535/52777330180_4f59448035_b.jpg - Basic 12.5" BA barrel that Mr. Allen fitted a custom M4 collar to. - AEM4 suppressor - PRI TOOB - Tano milspec upper - Brown BCM BCG - Tano Badger CH - Tano lower with FCD and ALG Defense lower bits - Geissele Super National Match trigger - Coyote Sopmod stock - Taupe SR25 grip - Blue Force Gear desert digital sling +Schmidt and Bender 1.5-8x24 ShortDot in a Badger C1 1.54" mount with an Aimpoint T2 in the C1 offset mount With light and laser it is pretty piggy, but without the extras, it's actually handy. The scope is not nearly as heavy as it looks and it better not be...It was pricey when I bought it 4 years ago; I don't even want to know what it would cost today. It shoots well enough that I don't want to send Ron another barrel for a custom collar just yet. Unless he just needs more work I know this isn't GD, but I'm going to say it anyways... That rifle fucks! Good lord 😍 LMAO. Thanks @slowkota1 I have toyed around with getting a 16" barrel/AEM5 and turning it into a mod H, but I don't need the extra weight or range capabilities. (ignore the non AE mini nsw) |
|
|
Originally Posted By TheTacticalCoyote: Agreed. View Quote View All Quotes View All Quotes Originally Posted By TheTacticalCoyote: Originally Posted By Rothperson87: Someone needs to start an OCM5 thread so we don’t have to hear anymore about them in Ron’s thread Agreed. Gee wizz, the horror of it all |
|
|
Originally Posted By Dagger727: I’m purchasing an OCM5 this week. Are there rails that will allow me to go longer with the can fit under? Also, what length will the barrel need to be cut to? Thanks! View Quote There is some variation in the length depending on how it's threaded, the block you use, how the block is mounted, and the individual can but for a mid gas barrel, you'll be at about 13.25" for an "A" mount. Any rail with an ID of over 1 5/8" would allow the can to go under or you can get a slightly shorter rail. Something from Midwest or similar, maybe? |
|
"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
|
|
|
|
Originally Posted By TyrannyOfTheMinority: New upper courtesy of Allegheny's gas block options @SchlaffTablett. Lightweight 12.5" mid-length gas bbl, OPS M4S from back in the day, Allegheny Arms .880" gas block, SLR 10.25" Ion Ultra Lite rail. She is sleek, efficient, lightweight. This is the lightest AR I own. With the correct lower (not pictured) the rifle weighs 6 lbs 13 oz ready to work with 30 rd mag, suppressor, optic, and light (no sling). https://i.postimg.cc/52fwx27M/IMG-0854.jpg OPS M4S https://i.postimg.cc/bNPhN7Qh/IMG-0863.jpg Gap is a little small, makes me nervous I'll have some contact under recoil. Range trip this coming week will tell the tale. Hopefully it will be ok, but she's TIGHT. https://i.postimg.cc/pLkKyM45/IMG-0856.jpg View Quote Have you shot it at all and was there any rubbing? In my experience, as long as you have about .030 or so, you'll probably have enough room for clearance and from the pics I'd think you were good. Also, is your barrel dimpled? If not, you may be able to cheat the block forward .010 - .020" or so by getting the barrel port at the back end of the hole in the block itself. If that's not an option, you'll just have to hope for the best on the rubbing thing. Regardless, that is an awesome looking build! |
|
"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
|
Here’s another Allegheny gas block build.
Had a PRI tube on it, but I enjoy the quad life. No one really makes a quad rail that would bump right up to the can, so there’s about 1/3 of the gas block exposed. BA 12.5” Govt cut to 11.25” by Josh at Allegheny (thanks again). Functions perfectly, albeit a little gassy. Overall this is about the same length as my 14.5 with a surefire 3 prong on the end. Attached File |
|
|
|
|
|
Originally Posted By SchlaffTablett: Have you shot it at all and was there any rubbing? In my experience, as long as you have about .030 or so, you'll probably have enough room for clearance and from the pics I'd think you were good. Also, is your barrel dimpled? If not, you may be able to cheat the block forward .010 - .020" or so by getting the barrel port at the back end of the hole in the block itself. If that's not an option, you'll just have to hope for the best on the rubbing thing. Regardless, that is an awesome looking build! View Quote Yeah, took it for a test drive yesterday. My feeler gauge says there’s a .013” gap. No evidence of contact under recoil or POI issues. Hooray! I think about cheating ithe GB forward for a little extra insurance, but the bbl IS dimpled so no go. The rear block is already not sitting flush against the bbl step (I assume by design to accommodate a variety of bbl specs). Any concern about the gas block getting pushed backward out of correct position by the can being tightened down against the front taper? Did you guys do any testing to see if the set screws hold properly against that shearing force? |
|
|
Originally Posted By TyrannyOfTheMinority: Yeah, took it for a test drive yesterday. My feeler gauge says there’s a .013” gap. No evidence of contact under recoil or POI issues. Hooray! I think about cheating ithe GB forward for a little extra insurance, but the bbl IS dimpled so no go. The rear block is already not sitting flush against the bbl step (I assume by design to accommodate a variety of bbl specs). Any concern about the gas block getting pushed backward out of correct position by the can being tightened down against the front taper? Did you guys do any testing to see if the set screws hold properly against that shearing force? View Quote Well I'm glad to hear you're not getting any contact. If its dimpled already, I don't know you'd be able to move it too much, maybe .010"or so. You'd have to make the adjustment and pin the block without relying on the screws. The block isn't going to move as long as the screws are set into the bottoms of the dimples squarely. If, and that's a big if, you made it a habit of wrenching your can down with all the ugga-duggas you could muster, I'd imagine you could eventually displace enough material to make the block move. That aside, the only way it would is if the block wasn't installed correctly. To eliminate the possibility, we usually recommend pinning it just for insurance. |
|
"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
|
I've been through most of the thread and a bunch of youtubes but I don't remember seeing a photo example of an AEM5-30 on a rifle-length gas / SOPMOD stock 7.62 carbine.
I bought an AEM5-30 online and am waiting the Form 3 transfer between dealers to start the individual Form 4. I have a 20-inch Armalite AR-10 with a Lothar-Walther barrel. I want to have it cut down to 17-ish inches so the base of the shoulder, collar, or suppressor butt up against the OEM gas block. D.wilson doesn't do AE profiling any more, and it's Sunday so I don't know if Steve's new machinist at ADCO does this kind of work. I e-mailed Allegheny but again it's Sunday. It should look like an SPR or a short SR-25 -- anyone have a photo of a set-up like this combination? |
|
|
Originally Posted By Sinister: I've been through most of the thread and a bunch of youtubes but I don't remember seeing a photo example of an AEM5-30 on a rifle-length gas / SOPMOD stock 7.62 carbine. I bought an AEM5-30 online and am waiting the Form 3 transfer between dealers to start the individual Form 4. I have a 20-inch Armalite AR-10 with a Lothar-Walther barrel. I want to have it cut down to 17-ish inches so the base of the shoulder, collar, or suppressor butt up against the OEM gas block. D.wilson doesn't do AE profiling any more, and it's Sunday so I don't know if Steve's new machinist at ADCO does this kind of work. I e-mailed Allegheny but again it's Sunday. It should look like an SPR or a short SR-25 -- anyone have a photo of a set-up like this combination? View Quote Like this...? Attached File |
|
|
Originally Posted By bigbore: Sounds like the rifle I built in 2007. It was by far my favorite .30 gas gun I ever shot. https://www.ar15.com/media/mediaFiles/12678/2007-3194575.jpg View Quote I was just thinking, that OPS 3rd model has been my favorite suppressor. I was using it last weekend at a night shoot on my 300WM. Makes me sad to realize when that barrel is done I'll probably have to retire that suppressor. |
|
I'm no good at telling people what they want to hear when I dont believe it myself :)
|
Originally Posted By joesrcool: Like this...? https://www.ar15.com/media/mediaFiles/179240/1000007443_jpg-3194538.JPG View Quote 🔥🔥🔥🔥 |
|
|
Attached File
I got this recently. My dealer said this is a pretty good suppressor if I'm into building clones. |
|
I killed a bacon puppy. :(
This post is brought to you by The Pogues, the official punk band of the .mil forums. |
@bigbore
Nice looking rifle. Yeah I had for a long time wanted to put together a M25 and I finally got the rifle and heard maybe there will be no way to put the can on it. I think they were 12th model 30’s with a sleeved collar behind the brake. |
|
Austin, Managing Partner - www.GriffinArmament.com
|
Yes, it was a standard 12th model .30 cal. Problem is the barrel design. Splines and almost no threads, no thread shoulder, and often reverse tapered
between thread and block. I custom fitted 2 for some group back in the day and they had a lot of problems getting them to function both ways. |
|
|
Does anyone have an M42 / 3rd model that's relatively new and could tell me what it weighs? I'm wondering how much weight mine has gained since new. It's over 2lbs now.
|
|
I'm no good at telling people what they want to hear when I dont believe it myself :)
|
|
Anyone got a line on 3 piece collars for the M4? I was going to buy one for a Gordy clone but I don't want to be stuck with a can I can't mount on anything.
|
|
RIP Sparky 1/15/15
"Did you not take into account I'm a noble savage? Unapologetic lifer for rock 'n roll!" |
|
Originally Posted By k31user: Originally Posted By Lothbrok: Anyone got a line on 3 piece collars for the M4? I was going to buy one for a Gordy clone but I don't want to be stuck with a can I can't mount on anything. In stock. https://www.aesuppressors.com/product/3-piece-collar/ Shows out of stock for me? Looked there, Thoroughbred, and Adco. |
|
RIP Sparky 1/15/15
"Did you not take into account I'm a noble savage? Unapologetic lifer for rock 'n roll!" |
Originally Posted By Lothbrok: https://www.aesuppressors.com/product/3-piece-collar/ Shows out of stock for me? Looked there, Thoroughbred, and Adco. View Quote Ron meant that he has them in stock. |
|
|
Originally Posted By Lothbrok: https://www.aesuppressors.com/product/3-piece-collar/ Shows out of stock for me? Looked there, Thoroughbred, and Adco. View Quote I'll be sending some to ADCO shortly. That will make it easier. |
|
|
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.