Reviews & Ratings for Guntec USA AR 9mm Mini Slip Over Barrel Shroud w/Multi Port Muzzle Brake — 4 reviews — Page 1

Can't blame anyone but myself for the error but I got the wrong thread size. It was buried in the description and I assumed when I ordered it for 9mm, it would be the right size. It was 1/2x36 and I needed 1/2x28. So, not realizing I had the wrong size, I was actually able to screw the shroud onto the barrel by hand without a noticeable resistance to the threads being incorrect.

When I thought that the shroud was getting tight by hand, I used a strap wrench to get it tightened down even more. After firing the rifle a few times, I realized the shroud was coming loose. I realized that it was coming loose due to the threads being wrong. Since I tightened the shroud with a strap wrench, I knew that it was coming loose because the threads were stripped out. The aluminum is the lower T6 and not 7075 so basically the shroud was ruined now.

My only complaint is I wish that I would not have been able to thread the device onto the barrel due to the thread difference and I almost feel like the threads are just very thin which allowed the device to thread with little resistance. Would've been a great looking device but did little to minimize flash or noise.

Still would recommend though.

I primary bought this for my 9mm AR 9 built for the looks. For me it really did not do anything for the barrel to keep level or lessen the noise.

Great mini muzzle device that helps with the noise for shooting at the range and extends back into the 15" handguard for the look I wanted. The price is pretty hard to beat as well. All in all it does exactly what I wanted it to do so I'm happy with it and would recommend it to friends. I have installed the longer version of this on my wife's .223/5.56 rifle and on my 6.5 Grendel.