DD MK18 10.3" with AAC M4-1000

[krichbaum]

Fixed (for now).

[Stangman]

edit.

[hunt_ak]

@N.Franklin

I didnt have any wrenches skinny enough to fit the flats on my mount…

I’m curious how the OP installed the brake as well after reading your post. Does it come with a wrench for the teeth or something?

[jwfuhrman]

he put the rail on AFTER the mount?

[krichbaum]

@jwfuhrman

he put the rail on AFTER the mount?

Yep. On this setup the mount has to be installed with the rail off. There is a fully enclosed section right at the front of the MK18 handguard, but it’s just big enough to allow the mount to slip through when the rail installed.

[RCO_B]

I’m running an SDN6 on a Mk18 and it has no problem clearing the rail. Then again, it’s a Noveske 10.5 barrel vs DD 10.3.

[Mahk]

AAC just put this photo up on their facebook:

K18 and 'N-6

Dude said it works fine with the Blackout/Brakeout and 10.3" barrel.

So, I guess I know what I’m doing with my next check.

[RyanB]

@rob_s

I’ve seen that before, but I’m not sure it was actually made for it, but made for another gun and just happens to work in this application. The end result is the same I guess. I can never remember which mount it is though. you remember the model #?

My understanding is that it was made for the 416.

[markm]

@Magic_Salad0892

I was under the impression they had some of the best?

Who said that, and who did they say had the best?

I’d assume Colt, KAC, Noveske, and Centurion.

I’ve heard of concentricity issues with LMT before.

It was like… Major Malfunction or… one of those silencer dealer types… it was a reference in passing in some thread on silencertalk forums.

Mounting the can and giving it a visual is simple. It’s very easy to see if your straight enough to shoot. I’ve only checked one barrel that made me nervous… one of pappabears LMT barrels.

[RyanB]

Colt is known for concentricity issues but it’s considered a risk for POI shift rather than baffle strikes.

[Magic_Salad0892]

Makes sense. I’ve SEEN a baffle strike with an LMT barrel.

[Todd.K]

@Mahk

Dude said it works fine with the Blackout/Brakeout and 10.3" barrel.

It depends on the mount. Old style (non “deep well”) FH, or the new Brakeout (with wrench flats at the back) should work.

[JasonM]

@Mahk

AAC just put this photo up on their facebook:

Dude said it works fine with the Blackout/Brakeout and 10.3" barrel.

So, I guess I know what I’m doing with my next check.

That’s my photo.

It works very well. Just need the right mount.

[CoryCop25]

I don’t know if this helps but with the 51 tooth Breakouts and 51 tooth Blackout that I have, if you can see the wrench flats in front of the end of the rail, the suppressor will fit.
I just built an 8 inch 300blk upper with a blackout and a new Troy 7.2" Beta rail and the suppressor fit perfectly!

[VIP3R_237]

@Magic_Salad0892

Makes sense. I’ve SEEN a baffle strike with an LMT barrel.

Shit thats scary. You’d think LMT would do better.

@markm

I’ve only checked one barrel that made me nervous… one of pappabears LMT barrels.

[ClearedHot]

How do the DD MK18’s run with a can? Are they overgassed? Does anyone know what the exact gas port size is on those uppers?

[Magic_Salad0892]

@VIP3R_237

Shit thats scary. You’d think LMT would do better.

They usually do. I’m willing to bet that 99.999% of their barrels are great. But the one I saw that had the strike was awful. The round didn’t hit just the endcap, it hit an actual BAFFLE. Suppressor was a Gemtech.

[dudshep31]

Just an update…pic of how close the aac m4-2k is to the mk18 rail

[Pappabear]

Thats badass.

[jesuvuah]

those pics make me jealous