Great little asr brake! - SilencerCo Single Port ASR Muzzle Brake

Like most things SiCo this little guy is flawless. Don't let the short overall length fool you, it's just as solid a mount as any of the other flash hider or brake options. Two great things about this one... First, if you plan to run it suppressed all the time anyway, the short brake body saves you weight. Second, and I discovered this on accident, if you are mounting this super tight to a handguard and have a hard time fitting a wrench on the back end, the flats on the front will save your bacon. I have one of these on a personal rifle, but recently installed one on a buddy's gun that has a 9.3" handguard with a 10" barrel. There's enough clearance for the can and the locking collar, but you'd need a thin open end wrench to torque down this brake. EXCEPT you don't! Because the front has flats, problem solved. Love this little guy.