300 blackout muzzle brake

Leper Messiah · Aug 2, 2015

Can anyone recommend a somewhat light weight muzzle brake for my 8.5" pistol? Looking to tame the muzzle rise. Thanks.

Tconfo · Aug 2, 2015

If your eventually going to put a suppressor on it, saker 762 muzzle brake or the gemtech Jake break I think they call it.

Tconfo · Aug 2, 2015

Also,Just beware some ammo is finicky with the muzzle break and won't cycle the round if it's subsonic. Not saying all subsonics but the MAST ammo without a can doesn't have enough back pressure to cycle it out of my 8.5

fidelity · Aug 2, 2015

I've put a Troy Claymore Muzzle Brake on a 300 BLK bolt action and AR build, both with 16-inch barrels ...

http://www.amazon.com/Troy-Claymore-Muzzle-Brake-7-62mm/dp/B00420NDWG
http://www.midwayusa.com/product/13...e-762mm-ar-10-dpms-lr-308-5-8-24-thread-matte

You'll note the reviews from the above are generally positive. I didn't do a before-and-after test, but muzzle rise doesn't seem to be much of an issue from either of the rifles with this brake. Some of this could be attributed to barrel length/weight of course.

Leper Messiah · Aug 2, 2015

No suppressor plans in the near future but could be down the road. Looked at the claymore, I like the design and the reviews but at 4oz I think its to heavy.

smokey · Aug 2, 2015

this video is pretty awesome for checking out flash-hiding capabilities...not that it really matters for 99.99999% of us...(notice how badly the spikes dynacomp sucks at reducing flash...yowza)

These videos aren't specifically for the .300 BLK, but the physics shouldn't really be all that different. You'll notice that linear devices don't really do anything substantial in reducing recoil or flash. They are good for SBRs for backpressure and redirecting blast forward and away from the shooter/neighbors though.

There's also this guy's take on barrel movement in the AR platform and how some muzzle devices overcompensate by pushing the barrel down too much, when correct technique should in large part reduce muzzle climb.

fidelity · Aug 2, 2015

Great videos. Had missed the TTAG articles. Here are the links (also embedded in the YouTube video descriptions) for those that want to easily see the results tables ...

First comparison of 5.56 brakes (November 2014) ...
http://www.thetruthaboutguns.com/2014/11/jeremy-s/556-muzzle-device-shootout/

Second comparison (April 2015) ...
http://www.thetruthaboutguns.com/2015/04/jeremy-s/ar-15-muzzle-brake-shootout-2/

Looks like mine (which directs gases forward) does little for recoil. My motivation was to get something that wouldn't be unpleasant for a younger shooter in terms of concussive blast (short of a suppressor) with a 300 BLK rifle, and the Troy Claymore (for a 5.56 AR) appears to perform well in this regard according to the TTAG writer in the second article.

The Precision Armament M4-72 brake which came out on top in both articles also comes in 7.62 so can be used with a 300 BLK rifle. One thing to keep in mind is that this device directs gases backwards so would increase the concussive effect for the shooter, a trade off to consider.

Muzzle rise wasn't a parameter that they could measure in the TTAG testings.

fidelity · Aug 2, 2015

Btw, in the comments, they also discuss the Black River Tactical Covert Comp, another linear compensator lighter than the Troy Claymore, reasonably priced, and positively reviewed on SBRs ...

http://jerkingthetrigger.com/2015/01/30/black-river-tactical-covert-comp/
http://www.customar15.net/shop/muzzle-devices/black-river-tactical-covert-comp-flash-hider/

Apparently 2.2 ounces ...
http://www.blackrivertactical.com/concrete5/covert-comp/

Pinecone · Aug 3, 2015

Another option is the ThunderBeast brake for their brake attached cans.

https://thunderbeastarms.com/products/accessories

fleaman64 · Aug 6, 2015

Tconfo said:
If your eventually going to put a suppressor on it, saker 762 muzzle brake or the gemtech Jake break I think they call it.

This ^^^^

If you have a pistol gas system, you should not have cycling issues with subsonic ammo.

Sounds like you are shooting supersonic loads through you 8.5?

DaemonAssassin · Aug 6, 2015

I went with a YHM Phanton 762.

Speed3 · Aug 6, 2015

Pinecone said:
Another option is the ThunderBeast brake for their brake attached cans.

https://thunderbeastarms.com/products/accessories

I have the thunderbeast flash suppressor on my .300blk, works well. But really only makes sense if you are purchasing their can.

Prior I had a linear brake on, didn't want it super loud to the shooters on the line.

Pinecone · Aug 6, 2015

I am putting the TB flash suppressor attachment on my .300 BO. But there is the CB5 can to go with it.

I have the muzzle brake on my .308 bolt gun, but have never shot it without the can.

fidelity · Aug 6, 2015

Speed3 said:
...

Prior I had a linear brake on, didn't want it super loud to the shooters on the line.

I'm happy with the Troy Claymore in that sense, and on two rifles (a 300 BLK AR and a bolt). I usually double protect (ear plugs and over the ear protection) when shooting a centerfire rifle at the range. However, with the Claymore, I'm very comfortable with just plugs alone even with supersonic 300 BLK. I felt that 38 Specials from a 4-inch barreled revolver sounded louder (was comparing the same day as the rifle shooting). With a rifle, I'm always shooting outdoor and don't know if any of these gains are diminished in an indoor setting (where I would probably double protect again).

Speed3 · Aug 6, 2015

Pinecone said:
I am putting the TB flash suppressor attachment on my .300 BO. But there is the CB5 can to go with it.

I have the muzzle brake on my .308 bolt gun, but have never shot it without the can.

Likewise, except that my can is the CB.

Haven't shot my bolt gun with the muzzle break yet either, I need rocksett first.

Leper Messiah · Aug 9, 2015

Decided to get the black river, I let you guys know how it works out. Thanks for the info fellas!

300 blackout muzzle brake

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