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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 Rothperson87:
I’m looking to put something shorter on my mini recce so I can keep the AEM5 on my Mk12 full time. I’m all about the 1/1 can/gun ratio and these two are breaking it right meow. I like the size of the AEM2 but I worry how much suppression I’m going to lose with the significantly shorter can. But looking at something like an aem4 it doesn’t look like I’m going to save much in length so is it really worth it? What do you all suggest? Also, do all the AE cans mount up the same way as the aem5? i.e. is the length from collar to brake the same 2.4" as the aem5? https://www.AR15.Com/media/mediaFiles/462226/D2E412FD-28C9-4A92-A61B-FCD48C914188_jpeg-1181445.JPG https://www.AR15.Com/media/mediaFiles/462226/E499D656-FC15-44E5-967E-4E9E3198175A_jpeg-1181449.JPG View Quote |
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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 |
Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By bradpierson26:
How about an omega? View Quote Attached File Attached File |
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If you want to piss off a conservative, tell him a lie. If you want to piss off a liberal, tell him the truth.
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Originally Posted By rabidus:
RIP SC-Texas AKA Sean Cody https://www.AR15.Com/media/mediaFiles/170028/9D7BFC6C-BFB1-4403-8B7D-BA6132EC65D4_jpeg-1181857.JPG View Quote RonA |
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Originally Posted By rabidus:
RIP SC-Texas AKA Sean Cody https://www.AR15.Com/media/mediaFiles/170028/9D7BFC6C-BFB1-4403-8B7D-BA6132EC65D4_jpeg-1181857.JPG View Quote Found this tidbit of info: As many of you know, Sean died in a single-vehicle accident near Victoria, Texas on Nov. 22, 2019 at approximately 3:00 p.m. Though unconfirmed at this time, current information / evidence appears to point to a heart attack being the cause of Sean's vehicle leaving the road. Services were earlier this week. |
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What’s the shortest barrel you can run with the AEM5, AND USING the Spikes micro tapered gas block?
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Words fall from your mouth like shit from ass.
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Originally Posted By BigWaylon:
Hadn't heard that. Found this tidbit of info: As many of you know, Sean died in a single-vehicle accident near Victoria, Texas on Nov. 22, 2019 at approximately 3:00 p.m. Though unconfirmed at this time, current information / evidence appears to point to a heart attack being the cause of Sean's vehicle leaving the road. Services were earlier this week. View Quote |
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http://www.amazon.com/Gentle-Propositions-J-S-Economos/dp/0615997635
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Originally Posted By pezboytate: I believe it's 11.00" for a carbine length gas system, 13.00" for a midlength gas system, and 16.38" for a rifle length gas system. View Quote |
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Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By Steamedliver:
What’s the shortest barrel you can run with the AEM5, AND USING the Spikes micro tapered gas block? View Quote Attached File |
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Thanks. So for a carbine length gas system, is there a go to barrel that I can get? Use the Spikes gas block and muzzle device?
Or do all these short barrels need to be custom fit? I see 11.5 inch, 10.5 inch and 10.3 inch barrels often. |
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Words fall from your mouth like shit from ass.
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Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By Steamedliver:
Thanks. So for a carbine length gas system, is there a go to barrel that I can get? Use the Spikes gas block and muzzle device? Or do all these short barrels need to be custom fit? I see 11.5 inch, 10.5 inch and 10.3 inch barrels often. View Quote |
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Originally Posted By Rothperson87:
You’ll probably have to have something cut to length. Mine started as 16" and I had D. Wilson chop it. View Quote View All Quotes View All Quotes Originally Posted By Rothperson87:
Originally Posted By Steamedliver:
Thanks. So for a carbine length gas system, is there a go to barrel that I can get? Use the Spikes gas block and muzzle device? Or do all these short barrels need to be custom fit? I see 11.5 inch, 10.5 inch and 10.3 inch barrels often. |
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Originally Posted By Outrider: I'd also recommend somebody like d.wilson to do the chop because he will make sure it is EXACTLY the length you need it to be versus trying to get a factory option to work. It also gives you more barrel options to start with as a host. View Quote Who is “d. Wilson?” How do I contract him? I have a couple of barrels I’d like to consider. Thanks. |
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Words fall from your mouth like shit from ass.
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Originally Posted By Steamedliver: Apologies. I’m new to AE, in fact my AEM5 hasn’t been transferred to me (in the NFA process though). Who is “d. Wilson?” How do I contract him? I have a couple of barrels I’d like to consider. Thanks. View Quote |
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Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By Steamedliver: Apologies. I’m new to AE, in fact my AEM5 hasn’t been transferred to me (in the NFA process though). Who is “d. Wilson?” How do I contract him? I have a couple of barrels I’d like to consider. Thanks. View Quote |
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Originally Posted By Rothperson87:
My mid length is s 13.0x". https://www.AR15.Com/media/mediaFiles/462226/08714A99-BC59-4C3D-B897-6CE0C4D57672_jpeg-1190533.JPG View Quote View All Quotes View All Quotes Originally Posted By Rothperson87:
Originally Posted By Steamedliver:
What's the shortest barrel you can run with the AEM5, AND USING the Spikes micro tapered gas block? https://www.AR15.Com/media/mediaFiles/462226/08714A99-BC59-4C3D-B897-6CE0C4D57672_jpeg-1190533.JPG |
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Who has a muzzle shot of an AEM?
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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 |
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That's one of my super special "signature series" suppressors. Signed and everything.
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Originally Posted By unclemoak:
Can flush fit against a URX 4. Ended up coming out as a 13" barrel. http://i43.photobucket.com/albums/e398/unclemoak/04F33303-E4D3-450C-8852-4091591B8E75.jpg View Quote |
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I had talked with Ron on the phone before and had taken some notes but I've misplaced them now. How far does the AEM5 reflex back over the barrel? I'm possibly buying one of the Ballistic Advantage barrels very soon that already has the Ops12 profile to start building up a potential AEM5 host upper. I need to know how long of a rail I could get away with before the collar and the back of the can will be an obstacle?
MAS Defense has a good sale on those barrels right now and I've been wanting to start building up another upper that is more focused on longer range shooting. Leaning heavily towards the 18 inch .223 wylde rifle length but I'm sure the 16 inch midddy would be just as capable. While I may not ever get an AEM5 I can definitely use the Sandman K I currently have or possibly the updated Resonator which I'm 99 percent sure I'm also purchasing soon once they start hitting the retail channel. Having the barrel already profiled for the collar would be nice if I ever decided to get myself an AEM5 at some point. I'd like to. |
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Originally Posted By jeremywills:
I had talked with Ron on the phone before and had taken some notes but I've misplaced them now. How far does the AEM5 reflex back over the barrel? I'm possibly buying one of the Ballistic Advantage barrels very soon that already has the Ops12 profile to start building up a potential AEM5 host upper. I need to know how long of a rail I could get away with before the collar and the back of the can will be an obstacle? MAS Defense has a good sale on those barrels right now and I've been wanting to start building up another upper that is more focused on longer range shooting. Leaning heavily towards the 18 inch .223 wylde rifle length but I'm sure the 16 inch midddy would be just as capable. While I may not ever get an AEM5 I can definitely use the Sandman K I currently have or possibly the updated Resonator which I'm 99 percent sure I'm also purchasing soon once they start hitting the retail channel. Having the barrel already profiled for the collar would be nice if I ever decided to get myself an AEM5 at some point. I'd like to. View Quote |
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Oh I’m sorry, I thought this was America!
MI, USA
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I’m thinking about picking up an aem2 for my mini recce so my aem5 can be on my Mk12 full time. Looking at the measurements on the AE website it looks like I’ll have to chop the barrel about .8" for the aem2 to work with the spikes tapered GB. My concern is if I’m cutting down the dwell time too much to function reliably. Ending OAL would be about 12.3" with a mid length gas system.
Pics for reference: Attached File Attached File Attached File |
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Originally Posted By Rothperson87:
I’m thinking about picking up an aem2 for my mini recce so my aem5 can be on my Mk12 full time. Looking at the measurements on the AE website it looks like I’ll have to chop the barrel about .8" for the aem2 to work with the spikes tapered GB. My concern is if I’m cutting down the dwell time too much to function reliably. Ending OAL would be about 12.3" with a mid length gas system. Pics for reference: https://www.AR15.Com/media/mediaFiles/462226/9DB1E186-ECD8-40BF-8D60-7FF9C10286AC_jpeg-1216693.JPG https://www.AR15.Com/media/mediaFiles/462226/6C92A1A6-F2B4-4A4B-BC94-EC991040A92A_jpeg-1216695.JPG https://www.AR15.Com/media/mediaFiles/462226/50A8080B-EC11-4B2F-965A-B18018DBA1BD_jpeg-1216699.JPG View Quote |
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Originally Posted By Rothperson87:
I’m thinking about picking up an aem2 for my mini recce so my aem5 can be on my Mk12 full time. Looking at the measurements on the AE website it looks like I’ll have to chop the barrel about .8" for the aem2 to work with the spikes tapered GB. My concern is if I’m cutting down the dwell time too much to function reliably. Ending OAL would be about 12.3" with a mid length gas system. Pics for reference: https://www.AR15.Com/media/mediaFiles/462226/9DB1E186-ECD8-40BF-8D60-7FF9C10286AC_jpeg-1216693.JPG https://www.AR15.Com/media/mediaFiles/462226/6C92A1A6-F2B4-4A4B-BC94-EC991040A92A_jpeg-1216695.JPG https://www.AR15.Com/media/mediaFiles/462226/50A8080B-EC11-4B2F-965A-B18018DBA1BD_jpeg-1216699.JPG View Quote Or Sell me that barrel and block and start with a different one! |
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IG: @TFB_Pete - Do right and fear no one
http://www.thefirearmblog.com/blog/author/pete-m/ |
Hmmmmm.....
I was about to post that yesterday I ordered a BA barrel with the intention of getting the ball rolling on a AEM5 later this year. Then I saw this thread............ https://www.ar15.com/forums/armory/Suppressor-Experts-Need-Input-Problem-/20-506856/?r=-1&page=1&anc=5237652#i5237652 Following it with great interest. Fingers crossed that I don't regret buying a BA barrel after all. As far as I knew BA barrels were good to go. I wasn't planning on putting together a super crazy precision host for an AEM5, just something that was more than adequate. We shall see I guess. |
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Originally Posted By SchlaffTablett:
Thanks for posting those pics up. I was just coming by to see if there have been any new developments in the AEM world only to find that, apparently, we're the development. That said, I just picked up a well used KAC 10" rail that I think I need to find a use for and perhaps give my MK12 a little buddy. Speaking of my MK12, it's all done except for the scope mount. That's a Warne on there now which works fine but its soon to be replaced with a NF Unimount.... https://i.imgur.com/1wEFthD.jpg?1 Ron, if I send mine back can you do add the "signature" to mine too? That's value added right there! View Quote https://www.ar15.com/forums/ar-15/Official-MINI-RECCE-Photo-and-Discussion-Thread/118-659371/ |
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Originally Posted By cjwwd2: You seek this https://www.ar15.com/forums/ar-15/Official-MINI-RECCE-Photo-and-Discussion-Thread/118-659371/ View Quote |
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"Here's to gunpowder and pussy; live by one, die by the other, love the smell of both."
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Oh I’m sorry, I thought this was America!
MI, USA
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Anyone had an AEM2 and AEM3 next to each other in the real world? Looking at the numbers from TFB, it only looks to be a few DBs... Just curious how much difference there is in sound and if the 3 is worth the extra length and weight?
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Originally Posted By Rothperson87:
Anyone had an AEM2 and AEM3 next to each other in the real world? Looking at the numbers from TFB, it only looks to be a few DBs... Just curious how much difference there is in sound and if the 3 is worth the extra length and weight? View Quote But your needs/wants may be different. |
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IG: @TFB_Pete - Do right and fear no one
http://www.thefirearmblog.com/blog/author/pete-m/ |
Long ago, there was either a one-off or a small run of cans that went back over the barrel the same length as the AEM 5 (or the OPS 12th Model), but was much shorter, and therefore added less overall length when mounted.
I don’t want to configure another setup that wouldn’t work with the AEM 5, but I wouldn’t mind sitting in NFA jail for a new AEM can that fits my existing mounts for the ‘5. Does anything like this exist? |
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Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By goloud: All depends on what you want. To me, the AEM5 is the ultimate in suppression with a weight penalty. I’d consider the AEM4, but for the AEM2 and AEM3 length, I’d prefer a traditional suppressor like the YHM Turbo K. But your needs/wants may be different. View Quote |
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Oh I’m sorry, I thought this was America!
MI, USA
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Originally Posted By Gthirteen:
Long ago, there was either a one-off or a small run of cans that went back over the barrel the same length as the AEM 5 (or the OPS 12th Model), but was much shorter, and therefore added less overall length when mounted. I don’t want to configure another setup that wouldn’t work with the AEM 5, but I wouldn’t mind sitting in NFA jail for a new AEM can that fits my existing mounts for the ‘5. Does anything like this exist? View Quote |
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Originally Posted By Rothperson87: I love my AEM5! Easily my favorite can. I’d like something a little shorter/ lighter for my mini recce (w/ the spikes GB) so my AEM5 can be on my Mk12 all the time. I looked at the 4 but want shorter/ lighter than that which naturally led me to the 2 & 3. Just can’t decide if the 3-5 DBs saved with the 3 is worth the extra weight/ length. I wish there was a bigger difference. A few decibels doesn’t seem like a lot on paper but for all I know could be pretty noticeable next to each other outside. View Quote |
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Originally Posted By ARgunner0210:
Decibels are a logarithmic scale. An increase of 3 dB correlates to a doubling of sound intensity. The ear doesn't perceive this as a doubling of the sound level (that occurs at about 10 dB), but the energy increase can be enough to possibly cause damage to the ear. Id take the weight hit for the increase in performance, personally. View Quote View All Quotes View All Quotes Originally Posted By ARgunner0210:
Originally Posted By Rothperson87: I love my AEM5! Easily my favorite can. I’d like something a little shorter/ lighter for my mini recce (w/ the spikes GB) so my AEM5 can be on my Mk12 all the time. I looked at the 4 but want shorter/ lighter than that which naturally led me to the 2 & 3. Just can’t decide if the 3-5 DBs saved with the 3 is worth the extra weight/ length. I wish there was a bigger difference. A few decibels doesn’t seem like a lot on paper but for all I know could be pretty noticeable next to each other outside. |
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Does anyone know when the next batch of aem5’s will be released? I asked my local shop to order one before Christmas and was told there is a 4-5 week lead time. Checked in with him and was told no update. I don’t have much of a relationship with this dealer so just trying to verify if I’m being strung along. The f4 transfer time is bad enough without added time.
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Originally Posted By bimmertech87:
Does anyone know when the next batch of aem5’s will be released? I asked my local shop to order one before Christmas and was told there is a 4-5 week lead time. Checked in with him and was told no update. I don’t have much of a relationship with this dealer so just trying to verify if I’m being strung along. The f4 transfer time is bad enough without added time. View Quote Adco is a major AEM dealer in OH but they show OOS at the moment. |
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Oh I’m sorry, I thought this was America!
MI, USA
|
Originally Posted By bimmertech87:
Does anyone know when the next batch of aem5’s will be released? I asked my local shop to order one before Christmas and was told there is a 4-5 week lead time. Checked in with him and was told no update. I don’t have much of a relationship with this dealer so just trying to verify if I’m being strung along. The f4 transfer time is bad enough without added time. View Quote |
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Originally Posted By Rothperson87: Capitol Armory has them in stock. Buy it there and F3 it to your dealer. View Quote At $900 they’d compete with the current crop of precision cans |
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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 |
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Originally Posted By ForestRegion: Already having an AAC Mini4, y'all are about to convince me to go with an AEM4 over the AEM3 now. View Quote |
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IG: @TFB_Pete - Do right and fear no one
http://www.thefirearmblog.com/blog/author/pete-m/ |
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