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View Full Version : .308 AR flash hider or comp


s2k1
07-03-2012, 12:08 PM
Building a .308 AR and was initially considering an AAC Blackout flash hider. I've never shot a .308, so not really sure what I'm getting into with regard to kick, but wanted to ask what everyone else is using? My initial thought was to reduce the flash as much as possible, but if there is significantly more kick than an AR-15, then maybe I should consider a comp. Anyone use Battlecomp on a .308? I have one for my AR-15 (Piston), but honestly I don't feel much of a difference compared to my AR-15 (Gas) with an A2.

Thanks!

nimoZ
07-03-2012, 2:56 PM
I use JP's (http://www.jprifles.com/1.4.3_tre.php) on mine. Works very well. A little loud for people around you, but not too bad.
http://www.jprifles.com/photos_new/JPTRE-3_271.jpg

For my AR15 I use this one (http://www.surefire.com/mb556k-muzzle-brakeadapter.html). It's like shooting a 22LR, but sounds like a little larger rifle.
http://www.surefire.com/media/catalog/product/cache/1/image/350x250/9df78eab33525d08d6e5fb8d27136e95/M/B/MB556K_xlarge_24482.png

FMJBT
07-03-2012, 3:26 PM
The Surfire and JP are both excellent brakes, but a bit on the loud side. The downside of nearly any effective brake though, is that the more efficient it is, the louder and more annoying it will be to bystanders. If you plan on shooting from a bipod, I'd stay away frombrakes like the battle comp that have ports exiting at a downward angle. The first time you light on off while laying prone in the dirt, you'll understand why :D Other brakes worth looking into are the DPMS Miculek, POF triple port, Darkmetal Design HK style brake, AAC Hollister (shorty) and Nordic compenents Corvette and Tactical brakes. There are a ton I'm forgetting about.

Along with a good muzzle brake, the next step in recoil reduction would be an adjustable gas block. You can tune the rifle so that the bolt carrier isn't slamming into the back of the buffer tube quite so hard. If a rifle is running too much gas pressure to the bolt, even a good muzzle brake may not seem effective because the recoil you are feeling the most is from the reciprocating mass of the bolt carrier assembly hitting the buffer after the initial muzzle blast.

mlaines
07-03-2012, 5:54 PM
[QUOTE=nimoZ;8865471]I use JP's (http://www.jprifles.com/1.4.3_tre.php) on mine. Works very well. A little loud for people around you, but not too bad.
http://www.jprifles.com/photos_new/JPTRE-3_271.jpg

Exactly what he said. I have the same one on my 10. I love it.

CS Sports
07-03-2012, 7:09 PM
I put a JP brake on a recent build and it is very effective. Very loud and obnoxious, but very effective:

http://img.photobucket.com/albums/v140/charleys/f7901491.jpg

G38xOC
07-03-2012, 7:26 PM
^ is that small or large ?

CS Sports
07-03-2012, 7:35 PM
I used the smaller of the two. About 1" diameter, iirc.

CS Sports
07-03-2012, 7:37 PM
Here is a pic of just the barrel. 1.2" to .950" to .750", iirc.

http://img.photobucket.com/albums/v140/charleys/94ffa2e8.jpg

G38xOC
07-03-2012, 8:56 PM
I used the smaller of the two. About 1" diameter, iirc.

delete . ^ that answered my question

I think I would rock a small one again on my build . I was planing on going with larger but that look kinda off

NSR500
07-03-2012, 11:06 PM
I use an AAC 51T FH on a 16"bbl and have no recoil or noise issues.