I know the suppressor threads to the brake and mates up to the collar. But how exactly does it mount to the barrel? Do you HAVE to have a MK12 barrel? How are people mounting these suppressor setups on barrels that are less than 16 inches?
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
anyways i had one built to put my aem5 on a 14.5" socom barrel. those have a step in front of the gas block journal.
There’s an arfcom thread with all this info, though don’t they take kindly to Otter Creek.That's what I want! I want a OCM5 on a 14.5 barrel but I'm trying to figure out how. Can you pin and weld the MK12 brake? (I don't know how long the brake is though)
Do you know the link to it? And what's wrong with Otter Creek?There’s an arfcom thread with all this info, though don’t they take kindly to Otter Creek.
Nothing wrong with Otter Creek, in fact their stuff is likely nicer than AE. Which is probably why AE isn’t a fan.Do you know the link to it? And what's wrong with Otter Creek?
Just get the Otter Creek OTB and put it on any barrel you want.
Pretty sure D Wilson will recontour barrels for this exact need to put a collar on to run the Ops Inc brake.
14.5" sounds fun. I love my 16" with an OCM5. It would be my go to gun for SHTF. Super versatile. Run it with a DBAL A2 and Surefire light.
77SMKs will fuck.
Oh and I found this in 14.5 so we are pretty much there other than the pin and weld, have to find someone to do that good.
Mk12 Barrel- Shiny, Machined Stainless
These barrels are the result of tens of thousands of dollars in development done to give our Special Operations the best weapon system they can have.centurionarms.com
Looks like they offer the collar and brake as an option. They may do the pin/weld. Probably worth a call.
I could be wrong but reading their description seems that it would have the end of the barrel at the collar. If that is the case you would lose a lot of velocity that way.
OTB= Over The Barrel. The flash suppressor/brake ends up at the muzzle threads the same as any other muzzle device.
If you have a govt profile barrel, I think Otter Creek has a collar for that to work: https://ottercreeklabs.com/product/m4-collar/
Arfcom probably hates on OC because "he stole Ron's design" despite not even remotely using the same internal baffle design (Ops Inc's patent was largely for baffle design), OC owner seems a bit cocky at times maybe?, and his instagram is kind of cringe to me personally.
OC seems to make good suppressors, and while AE was transferring to Trajectory Arms or whoever is doing the AEM5 now, it was nice to see someone making moderately clone correct suppressors for all of us suckers who can't stop simping over the looks of a properly kitted MK12.
Yes. I emailed them today actually and they recommend no spacer or crush washer between the brake and the barrel.
Something to consider, most companies go off the original drawing for spacing from the threads to the collar step. On most of the cans I have seen this allows 2.5-3 full turns. Ron recommended I think 6 full turns . (My can shot fine with three turns and didn’t shoot loose)
If you pin and weld this before you know how many turns you’re going to get screwing the can on, if it’s short, you’re F’d as that collar won’t fit over the brake to set the shoulder back.
Might be best to have it all in one place to test for everything before you do any permanent work.
Could mean nothing to you. I have my barrels profiled for 6-10 turns on the can.
Well you have to time it...?
Something to consider, most companies go off the original drawing for spacing from the threads to the collar step. On most of the cans I have seen this allows 2.5-3 full turns. Ron recommended I think 6 full turns . (My can shot fine with three turns and didn’t shoot loose)
If you pin and weld this before you know how many turns you’re going to get screwing the can on, if it’s short, you’re F’d as that collar won’t fit over the brake to set the shoulder back.
Might be best to have it all in one place to test for everything before you do any permanent work.
Could mean nothing to you. I have my barrels profiled for 6-10 turns on the can.
That's awesome. Did they mention anything about the gas block they would use on that 14.5? I'm wondering how gassy a 14.5/mid will be.
That's what I want! I want a OCM5 on a 14.5 barrel but I'm trying to figure out how. Can you pin and weld the MK12 brake? (I don't know how long the brake is though)
That was not discussed and further CLE actually offers the 15.1 length barrel. I'm just getting into this so I'm sharing information with you guys as I learn it. But apparently the 15.1 barrel only exist because arfcom guys were begging for a barrel length that would leave the AEM5 flush with a KAC FF RAS. Now that the rail is no longer offered I don't see the point in going with the 15.1 barrel. However I also don't know what length rail would be used with a 14.5 setup, it could leave me at an odd length with a gap.
But to answer your question further, maybe an adjustable gas block would be beneficial. I don't really care for them but I've learned the AEM5 setup is gassy in general (even though I will be using a OCM5) so maybe a gas block like this https://suparms.com/750-adjustable-gas-block-stainless-steel-solid-set-screw-melonite-finish.html would be of use. Bleed off of gas will go out of the block and not the ejection port. However, again I do not know if that will make the setup louder or not.
There's still a lot of unknowns.
So I spoke with ADCO and they said they absolutely wouldn't touch it.
I also called D. Wilson and explained it to the girl that answered the phone. She said yea no problem. I expressed to her how different it would be vs a normal pin and weld and asked if she could double check with the gunsmith. She came back and said he said they could do it no problem. The same $60 as a normal pin and weld. I'm still a little skeptical it wasn't expressed the difficulty there could be. What do you guys think?
That was not discussed and further CLE actually offers the 15.1 length barrel. I'm just getting into this so I'm sharing information with you guys as I learn it. But apparently the 15.1 barrel only exist because arfcom guys were begging for a barrel length that would leave the AEM5 flush with a KAC FF RAS. Now that the rail is no longer offered I don't see the point in going with the 15.1 barrel. However I also don't know what length rail would be used with a 14.5 setup, it could leave me at an odd length with a gap.
But to answer your question further, maybe an adjustable gas block would be beneficial. I don't really care for them but I've learned the AEM5 setup is gassy in general (even though I will be using a OCM5) so maybe a gas block like this https://suparms.com/750-adjustable-gas-block-stainless-steel-solid-set-screw-melonite-finish.html would be of use. Bleed off of gas will go out of the block and not the ejection port. However, again I do not know if that will make the setup louder or not.
There's still a lot of unknowns.
I went this route because CLE had a 15.1” “recce” barrel on the clearance rack. I couldn’t find a KAC FF rail, so I bought a DD RISII and cut 1/2” off with a bandsaw. Touched it up with some of the dark brown krylon camo paint (matches perfect).
I wouldn’t do it again for the lack of rail selection that would work with this barrel length and can setup without being prohibitively expensive, requiring modification, or looking retarded. Next time will be a 16” from craddock and a 13” KAC URX4.