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Posted: 5/15/2015 3:03:05 PM EDT
[Last Edit: BurtSaun1049]
I've been a big fan of these cans since I first saw one on a Mk 12 way back when. Haven't seen a thread dedicated to them, so thought I would create one! Anything you spy that is incorrect, let me know.
The Firearm Blog article on Allen Engineering written by our own @goloud 5.56 Cans Ops Inc cans Ops Inc Family pic courtesy of @The_Accuser. Top picture from right to left: M4S, M4M, Model 14th, 15th, 16th and 12th: Ops Inc 3rd Model 1989 Panama (Paul Howe on far left) Mid-90's in use by Delta (photos found by @10Point3) 1990-1991 Gulf War: 1992 joint training w/ SAS in Hereford 1993 Somalia Possible 3rd model as used by Craig "Sawman" Sawyer (h/t to @Augee and @bigbore for detective work) More recent photos of 3rd model (found by @MDStroup): Original alignment collar (courtesy of Ron Allen (@k31user), owner of Allen Engineering and long-time maker of cans at Ops Inc) Diameter: 1.5 inches Length past muzzle: 5 inches Overall length: 10 inches Weight: 24 ounces Construction: Fusion welded 300 series stainless steel Endurance: Meets SOPMOD objective of 30,000 rounds under various firing schedules. (Note: Currently these devices have surpassd 90,000 rounds operational use without failure) M4-S Caliber 5.56mm / .223 caliber Diameter: 1.5 inches Length Past brake: 1 inch Length past muzzle: 2.25 inches Overall length: 4.5 inches Weight: 11.2 ounces Construction: Fusion welded 300 series stainless steel (Note: Currently these devices have surpassd 90,000 rounds operational use without failure.) M4-M MBS @pistolpete's 12.5" upper with M4M Diameter: 1.5 inches Length Past brake: 2.5 inches Length past muzzle: 3.75 inches Overall length: 6 inches Weight: 14.6 ounces Construction: Fusion welded 300 series stainless steel (Note: Currently these devices have surpassd 90,000 rounds operational use without failure.) 12th Model SPR MBS 5.56 Mk 12s Matt Axelson's with James Suh (RIP ) Mk 12 Mod 1 @Rogue4's Mod Holland's (h/t to @Glass1, @18E3V, and @Nikiel09): Diameter: 1.5 inches Length past brake: 5 inches Length past muzzle: 6.25 inches Overall length: 8.7/8 inches Weight: 21 ounces Construction: Fusion welded 300 series stainless steel Endurance: Meets SOPMOD objective of 30,000 rounds under various firing schedules 14th Model CQB MBS Diameter: 1.5 inches Length past brake: 3 inches Length past muzzle: 4.25 inches Overall length: 6.5 inches Weight: 15.5 ounces Construction: Fusion welded 300 series stainless steel 15th Model CQB MBS 15th model? In use by Canadian SOF Diameter: 1.5 inches Length past brake: 3.5 inches Length past muzzle: 4.75 inches Overall length: 7 inches Weight: 17 ounces Construction: Fusion welded 300 series stainless steel Endurance: Meets SOPMOD objective of 30,000 rounds under various firing schedules. 16th Model CQB MBS @BookHound's 16th Model: @pistolpete's 16th Model Diameter: 1.5 inches Length past brake: 4 inches Length past muzzle: 6.25 inches Overall length: 8.5 inches Weight: 19 ounces Construction: Fusion welded 300 series stainless steel Endurance: Meets SOPMOD objective of 30,000 rounds under various firing schedules. Allen Engineering (AE) cans AE22 Length: 8" Weight: 20.1oz Finish: Black Oxide Lifetime Warranty AEM5 @RTUtah's: Length: 8 7/8" Weight: 21oz Finish: Black Oxide Lifetime Warranty AEM4 Caliber: 5.56 Length: 8.5" Weight: 20oz Finish: Black Oxide Lifetime Warranty AEM3 Length: 7" Weight: 18.2oz Finish: Black Oxide Lifetime Warranty AEM2 Length: 6" Weight: 15oz Finish: Black Oxide Lifetime Warranty Which AE can is roughly equivalent to an Ops Inc Can? AE22 = Ops Inc 3rd model 5.56 AEM5 = Ops Inc 12th model SPR MBS AEM4 = Ops Inc 16th Model CQB MBS AEM3 = Ops Inc 15th Model CQB MBS AEM2 = Ops Inc M4M |
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Originally Posted By Into_the_Void: https://www.ar15.com/media/mediaFiles/220444/1000007642_jpg-3131276.JPG View Quote Very nice, is that an M24 or AEM5-30? |
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Strength Determination Merciless Forever
PA, USA
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Originally Posted By Jarth: Very nice, is that an M24 or AEM5-30? View Quote View All Quotes View All Quotes Originally Posted By Jarth: Originally Posted By Into_the_Void: https://www.ar15.com/media/mediaFiles/220444/1000007642_jpg-3131276.JPG Very nice, is that an M24 or AEM5-30? Regular old aem5. Rifle is chambered in 22-250. Attached File Attached File |
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What's the consensus on barrels to use with an M4 suppressor?
I was planning on using a 14.5 Pencil profile barrel, but all the builds I see of the "Gordon" style guns have 14.5 M4 profiles. Is the heavier profile better in this case? Or does it not matter? |
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Originally Posted By Flyit14: What's the consensus on barrels to use with an M4 suppressor? I was planning on using a 14.5 Pencil profile barrel, but all the builds I see of the "Gordon" style guns have 14.5 M4 profiles. Is the heavier profile better in this case? Or does it not matter? View Quote Pretty sure the M4 collar needs an M4 profile forward of the FSB. |
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Guys, I'm trying to remember an old setup I had. It was a a government profile Ballistic Advantage 12.5-inch barrel with carbine gas and an old FSP paired with my AEM5 but I can't remember what collar I ran. I wanna say it was the M4 collar but the barrel required zero modification from the manufacturer.
I'm retooling my '90s Delta carbine and decided it needs the AME5 instead of the NT4. |
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https://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By RTUtah: Guys, I'm trying to remember an old setup I had. It was a a government profile Ballistic Advantage 12.5-inch barrel with carbine gas and an old FSP paired with my AEM5 but I can't remember what collar I ran. I wanna say it was the M4 collar but the barrel required zero modification from the manufacturer. I'm retooling my '90s Delta carbine and decided it needs the AME5 instead of the NT4. View Quote It was the M4 to AEM5 collar. |
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Originally Posted By Outrider: It was the M4 to AEM5 collar. View Quote I'm hoping it's this one. My bro somehow got mine and just sent me this pic. Attached File |
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https://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By Outrider: It was the M4 to AEM5 collar. View Quote View All Quotes View All Quotes Originally Posted By Outrider: Originally Posted By RTUtah: Guys, I'm trying to remember an old setup I had. It was a a government profile Ballistic Advantage 12.5-inch barrel with carbine gas and an old FSP paired with my AEM5 but I can't remember what collar I ran. I wanna say it was the M4 collar but the barrel required zero modification from the manufacturer. I'm retooling my '90s Delta carbine and decided it needs the AME5 instead of the NT4. It was the M4 to AEM5 collar. Depends on the spec for the barrel. I have a 12.5” BA barrel and I’m pretty sure the OD isn’t the same as a “M4” barrel. I just sent measurements to Ron and he sent the correct sized collar. Looks similar to the one in the pic above. |
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Originally Posted By MK3110: Depends on the spec for the barrel. I have a 12.5” BA barrel and I’m pretty sure the OD isn’t the same as a “M4” barrel. I just sent measurements to Ron and he sent the correct sized collar. Looks similar to the one in the pic above. View Quote The M4 to AEM5 collar used to be a standard/stocked item but barrel specs varied so widely that it became a “machined to order” thing. |
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The AEM5 on M4 collar has a longer .852 diameter section so I can get the taper back farther on the barrel. The standard M4 collar is around 1.47" long and the AEM5 on M4
collar is around 1.875 long. |
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Originally Posted By k31user: The AEM5 on M4 collar has a longer .852 diameter section so I can get the taper back farther on the barrel. The standard M4 collar is around 1.47" long and the AEM5 on M4 collar is around 1.875 long. View Quote Is it possible to machine a collar for a 12.5" 0.625 "pencil" style barrel (a Criterion Core, specifically)? |
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Let's Go Brandon!!!
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Originally Posted By CowboyWubWub: Pretty sure the M4 collar needs an M4 profile forward of the FSB. View Quote View All Quotes View All Quotes Originally Posted By CowboyWubWub: Originally Posted By Flyit14: What's the consensus on barrels to use with an M4 suppressor? I was planning on using a 14.5 Pencil profile barrel, but all the builds I see of the "Gordon" style guns have 14.5 M4 profiles. Is the heavier profile better in this case? Or does it not matter? Pretty sure the M4 collar needs an M4 profile forward of the FSB. Yeah I was talking about the M4 suppressor that's a direct thread and uses the 3 piece collar. For the AEM5 on a non SPR barrel you would be correct though. |
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I should've bought an M4S back in the day
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Uncle
Sam's Misguided Children |
Originally Posted By SaturationTech: Hahnson Brothers has 2 AEM5s in stock currently. If anyone is looking. View Quote This got me to take the plunge. Gotta finish out my Mk12-ish build. I picked up a muzzle brake and the SPR collar. This should allow me to mount this on my WOA SPR barrel, yeah? |
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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: This got me to take the plunge. Gotta finish out my Mk12-ish build. I picked up a muzzle brake and the SPR collar. This should allow me to mount this on my WOA SPR barrel, yeah? View Quote It should. I used a WOA barrel and ended up having to get a custom collar from Ron Allen. The stock one didn't give me enough turns for proper mounting. |
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Strength Determination Merciless Forever
PA, USA
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Originally Posted By Into_the_Void: https://www.ar15.com/media/mediaFiles/220444/1000007693_jpg-3134812.JPGhttps://www.ar15.com/media/mediaFiles/220444/20231207_111645_jpg-3134813.JPGhttps://www.ar15.com/media/mediaFiles/220444/20231223_172642_jpg-3134814.JPG View Quote All wearing the same AEM5, I presume? Looking good |
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@K31user for the Gordon collar (14.5 barrel length) did you say the minimum barrel thickness needs to be .570?
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I picked up my Allen M4 suppressor (bought from TA) after an exceedingly fast seven week E Form 4 approval. I wasn’t aware the collar/sleeve that shipped with it is a blank. Is that correct? Was the sleeve always intended to be machined for the barrel? Any options other than to send this out to have machined or can I trust a local machinist to bore it out to the correct dimension?
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Yes, it is shipped oversized. Due to variations in barrel diameters, it needs to be matched to your barrel. According to ADCO, the front taper that interfaces with the back of the suppressor needs to be turned down too. I asked that question in the ADCO forum on here. I’d send it to them honestly. D Wilson is also highly regarded.
I was quoted $40 for the service. |
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View Quote Now this is a cool build. I had one similar back in the day when my only can was the M5 but it was set up as a Mk18 Mod0. |
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https://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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TheFirearmBlog.com
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Ok. I think I am going to finally bite the bullet and invest in two bolt action builds. Who is the best place for the following:
Barreled action - 5.56 - M24 Match with AEM5 no-collar profile. Barreled action - .308 - M24 Match with AEM530 no-collar profile. Do I need to get the barrels from one source, the actions from another, and a third place for the install and headspacing? @bigbore is this in your wheelhouse? |
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TheFirearmBlog.com
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Originally Posted By goloud: Ok. I think I am going to finally bite the bullet and invest in two bolt action builds. Who is the best place for the following: Barreled action - 5.56 - M24 Match with AEM5 no-collar profile. Barreled action - .308 - M24 Match with AEM530 no-collar profile. Do I need to get the barrels from one source, the actions from another, and a third place for the install and headspacing? @bigbore is this in your wheelhouse? View Quote I'm not sure what "M24 Match" means? It sounds like you are asking about custom builds that could run several hundred dollars to several thousand dollars. The most economical thing I can suggest is buy used Remington 700s off gunbroker in 5.56 and .308. Send the barreled actions to Douglas Barrels to have heavy SS barrels installed. Then you can send me the stripped barreled actions to cut down and thread/contour for the AE cans. Just make sure to have them install longer than desired barrels so they can be cut down. |
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I'm no good at telling people what they want to hear when I dont believe it myself :)
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Originally Posted By goloud: Ok. I think I am going to finally bite the bullet and invest in two bolt action builds. Who is the best place for the following: Barreled action - 5.56 - M24 Match with AEM5 no-collar profile. Barreled action - .308 - M24 Match with AEM530 no-collar profile. Do I need to get the barrels from one source, the actions from another, and a third place for the install and headspacing? @bigbore is this in your wheelhouse? View Quote Build your own. Zermatt Origin/equivalent action and then get a prefit barrel of your choice made to AE specs. |
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@bigbore do yall sell the 3 piece Gordon collars now? Or do i need to email Ron.
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I'm no good at telling people what they want to hear when I dont believe it myself :)
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Any source for 5/8x24 AEM5/12th mode Muzzle Brakes?
I was super excited to see 30 cal AEM5s hit the market but it looks like all the brakes are gone, I found somewhere with one 1/2x28 for $200+ but no 30 cal at any price. I’d love to finally get the can for my Mk12 in 6.5 Grendel but not if I’ll only ever be able to use it on one rifle. |
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Originally Posted By Mblades: Any source for 5/8x24 AEM5/12th mode Muzzle Brakes? I was super excited to see 30 cal AEM5s hit the market but it looks like all the brakes are gone, I found somewhere with one 1/2x28 for $200+ but no 30 cal at any price. I’d love to finally get the can for my Mk12 in 6.5 Grendel but not if I’ll only ever be able to use it on one rifle. View Quote I just sent some to Trajectory. Should have them by Monday or so. I have a second CNC lathe coming in tomorrow so I will be doing a better job of keeping up on brakes soon. |
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Originally Posted By Mblades: Any source for 5/8x24 AEM5/12th mode Muzzle Brakes? I was super excited to see 30 cal AEM5s hit the market but it looks like all the brakes are gone, I found somewhere with one 1/2x28 for $200+ but no 30 cal at any price. I’d love to finally get the can for my Mk12 in 6.5 Grendel but not if I’ll only ever be able to use it on one rifle. View Quote I have 5/8 .30 brakes in stock. |
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I'm no good at telling people what they want to hear when I dont believe it myself :)
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Ron, any update you'd like to share on the run of M24s?
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Originally Posted By bigbore: I'm not sure what "M24 Match" means? It sounds like you are asking about custom builds that could run several hundred dollars to several thousand dollars. The most economical thing I can suggest is buy used Remington 700s off gunbroker in 5.56 and .308. Send the barreled actions to Douglas Barrels to have heavy SS barrels installed. Then you can send me the stripped barreled actions to cut down and thread/contour for the AE cans. Just make sure to have them install longer than desired barrels so they can be cut down. View Quote what's a good price on a used 700? |
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I wouldn't stand in front of a piss-filled supersoaker. Does that make it a good pistol? - Caboose314
I thought I was covered for 22 cans, but the NFAids is a bitch when it mutates - themagikbullet |
I bought all this equipment. What do you mean that the dead AREN'T coming back to life?
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Originally Posted By bigbore: I have 5/8 .30 brakes in stock. View Quote View All Quotes View All Quotes Originally Posted By bigbore: Originally Posted By Mblades: Any source for 5/8x24 AEM5/12th mode Muzzle Brakes? I was super excited to see 30 cal AEM5s hit the market but it looks like all the brakes are gone, I found somewhere with one 1/2x28 for $200+ but no 30 cal at any price. I’d love to finally get the can for my Mk12 in 6.5 Grendel but not if I’ll only ever be able to use it on one rifle. I have 5/8 .30 brakes in stock. I suck at the internet, I swear ADCO was one of the first places I checked. |
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Form 1 cleared Monday,Form 4 cleared yesterday, last night I picked up my M4 on my way home! Sent barrel and collar to ADCO for chop/thread…..can’t wait to get this going!
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I'm no good at telling people what they want to hear when I dont believe it myself :)
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I'm no good at telling people what they want to hear when I dont believe it myself :)
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I bought all this equipment. What do you mean that the dead AREN'T coming back to life?
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I wouldn't stand in front of a piss-filled supersoaker. Does that make it a good pistol? - Caboose314
I thought I was covered for 22 cans, but the NFAids is a bitch when it mutates - themagikbullet |
Strength Determination Merciless Forever
PA, USA
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Originally Posted By Into_the_Void: https://www.ar15.com/media/mediaFiles/220444/1000004998_jpg-3146337.JPG View Quote Specs if you don’t mind. And who did your barrel work? |
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TheFirearmBlog.com
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I just had a savage prefit done by theurbanriflemanstore.com He machined the taper in the barrel, I think he is using wilson blanks. I got everything put together and it fit up with 7 turns.
Rws built my rem700 for my m24 and he knocked that out too. That took about 8 or so months with me supplying everything. With 169smks I got .36 group and .4 with load testing |
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Took the Gordon clone out to a 2 gun match today….and took 2nd overall and 1st in my Division
Attached File Attached File |
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