Which Muzzle Brake to Pin and Weld on 5.56 AR Barrel

[POB]

Oh, I was under the impression it had to be permanent to be legal.

I can solder, if this is legit. What about the "pinning"?

Part of my concern (especially with my favored Dynacomp) is wearing out the comp before the barrel? Another is innovative technology bringing us a much better comp next year, after I committed this barrel to the older device.

There was a big discussion on another forum about it. It is permanent in the sense it can't readily be taken off without heating the thing red hot. There is no pinning. Actually pinning and welding is not really permanent as it can be reversed but with more work involved. I would Google and see for yourself first. I will check in to it myself tomorrow. Cheers

edit: Nevermind about soldering, sounds like it is not such a good idea. Like I said above pin and welding is reversible. Some send their barrels to Adco for the pin and weld and the reversal.My truck/trunk gun is an AR pistol, no pinning or nothing.

 

[Heavy]

I have a Griffin Armament M4SD Flash Comp, it is sort of a jack of all trades muzzle device brake/compensator/flash suppressor. I'm as far from operator as one can get, and I'm still learning, but I have all good things to say about it. It came on the American Defense Manufacturing UIC mod 2 I treated myself to earlier this year. 14.5''bbl as well with this comp taking it to legal length, and I do believe it comes pre drilled for the pin. As an added bonus, if you decide to quiet your rifle in the future it is compatible with the Griffin Armament QD suppressors (not sure if it's compatible with other makes of QD suppressors). $100 on their website here's a link just for good measure...https://www.griffinarmament.com/M4SD-5-56-Flash-Comp-1-2x28-p/xhp556fc.htm

 

[Vigilant]

Silver solder USED to be acceptable, I'm not sure if that is still the case, as it no longer applies to me.

 

[bwframe]

I have a Griffin Armament M4SD Flash Comp, it is sort of a jack of all trades muzzle device brake/compensator/flash suppressor. I'm as far from operator as one can get, and I'm still learning, but I have all good things to say about it. It came on the American Defense Manufacturing UIC mod 2 I treated myself to earlier this year. 14.5''bbl as well with this comp taking it to legal length, and I do believe it comes pre drilled for the pin. As an added bonus, if you decide to quiet your rifle in the future it is compatible with the Griffin Armament QD suppressors (not sure if it's compatible with other makes of QD suppressors). $100 on their website here's a link just for good measure...https://www.griffinarmament.com/M4SD-5-56-Flash-Comp-1-2x28-p/xhp556fc.htm

I like that one. It doesn't look like it's missing something without the suppressor on it.

I mentioned that suppressors weren't an option. That said, I forget that we've just had a resounding victory in the election. Maybe if we get ourselves together and take the advantage we need to, we can get legislation passed to get suppressors off the NFA? Everything we have might need a suppressor then?

 

[Bsj425]

The hearing protection act is already in motion. This gets suppressors off of the NFA. Contact your reps and get them to sign on as co sponsors.

 

[Heavy]

I'm a half empty kind of guy most of the time, that way things can only go up! That being said, I get a bit giddy thinking about the HPA passing, of course that's usually short lived and I return to my old self. Much like the election, I hope I get this wrong too!

 

[Deprime]

I really like the Strike Industries J-Comp. Great performance for a low price. Typically $26.99 to $29.99.

I have two myself and I put one on my father's rifle as well. They are long enough to pin/weld onto a 14.5" to get legal.

 

[Tomahawkman]

I recommend the one I sold you

 

[seedubs1]

https://www.atf.gov/firearms/docs/atf-national-firearms-act-handbook-chapter-2/download

The ATF has a document regarding proper methods of permanently attaching a muzzle device. If you're soldering, it must be with high temp (>1100 F) solder. Blind pinning and welding is also a recognized adequate process.

Silver solder USED to be acceptable, I'm not sure if that is still the case, as it no longer applies to me.

 

[bwframe]

I recommend the one I sold you

Thank you again for that deal sir!

The BCM Mod1 is on another barrel at this time. It could well be moved to a 14.5" barrel if it's decided as the best option to become part of that barrel for good.

 

[Tomahawkman]

Thank you again for that deal sir!

The BCM Mod1 is on another barrel at this time. It could well be moved to a 14.5" barrel if it's decided as the best option to become part of that barrel for good.

I've heard that BCM comp is a good option giving the best of flash reduction and recoil management, But recently, and especially if this suppressor thing works out, I'm liking the sound of griffin flash hider/suppressor adapter... I just really like that system if you want to take the possibility of a suppressor into account for the future.

I will aslo recomend the surefire socom 5.56 brake, its expensive ($134.00 if you can find it in stock), its loud but it makes your rifle shoot super flat. I've got one on my 14.5 and I've got a few hundred rounds through it and its definitely worth it.

Pics

 

[Vigilant]

https://www.atf.gov/firearms/docs/atf-national-firearms-act-handbook-chapter-2/download

The ATF has a document regarding proper methods of permanently attaching a muzzle device. If you're soldering, it must be with high temp (>1100 F) solder. Blind pinning and welding is also a recognized adequate process.

Thanks for that, my first SBR was silver soldered, but was sold before INGO was a thing. Wasn't sure if it was still an acceptable method.

 

[cop car]

Surefire warcomp. If you can find one.

 

[rvb]

I'm toying with buying a 14.5" barrel to pin/weld for a short as legal lightweight 5.56 AR truck gun.

personally.... I'd rather go w a 16" barrel and no muzzle device for a 'truck gun' than deal with the extra cost/hassle of something pinned....
Besides, A simple A2 FH adds what, 1" to oal?
some of these suggested above are pretty pricey and long (will end up about the length of 16"+A2. A2 isn't a horrible comp or FH for <$10.

when I think truck gun, I think simple, inexpensive, adequate to get home with... won't cry if stolen or parts rust...

-rvb

 

[Cmak85]

BCM mod1 is what I have on my 14.5 middy and I love it..

 

[Hop]

Why no love for the.Battle Comp BC1.5? I've blind pin & welded mine onto a Colt M4 profile 14.5" and love it.

 

[aclark]

I like that one. It doesn't look like it's missing something without the suppressor on it.

I mentioned that suppressors weren't an option. That said, I forget that we've just had a resounding victory in the election. Maybe if we get ourselves together and take the advantage we need to, we can get legislation passed to get suppressors off the NFA? Everything we have might need a suppressor then?

Why not hold out for the hearing protection act, then weld a suppressor onto an 11-12" barrel? If they come off of nfa the prices will surely start going down.

 

[mammynun]

Why no love for the.Battle Comp BC1.5? I've blind pin & welded mine onto a Colt M4 profile 14.5" and love it.

And it comes with a hole already in it at 6 o'clock for pinning purposes.

 

[Slow Hand]

I have that comp on my 16" Troy carbine. It's amazing how flat it shoots! It is loud, but then so are most all comps.

Burl, when pinning and welding, you are drilling through the muzzle attachment and partially through the barrel. The pin is driven in and weld covers the pin, locking it in place. A good smith or machinist can easily cut through the weld, remove the pin and allow you to change out muzzle devices at a later time. It will most likely destroy the MA, but it is an option. When it comes to metal, nothing is really 'permanent'!

I've heard that BCM comp is a good option giving the best of flash reduction and recoil management, But recently, and especially if this suppressor thing works out, I'm liking the sound of griffin flash hider/suppressor adapter... I just really like that system if you want to take the possibility of a suppressor into account for the future.

I will aslo recomend the surefire socom 5.56 brake, its expensive ($134.00 if you can find it in stock), its loud but it makes your rifle shoot super flat. I've got one on my 14.5 and I've got a few hundred rounds through it and its definitely worth it.

Pics

 

[bwframe]

Thanks Doug. First report I've heard that the muzzle device could be removed after the pin/weld.

Do some comps wear over time and rounds fired? Specifically the one's with smaller ports such as the Battlecomp and my Spikes Dynacomp?