• Extreme Duty baffle design for wide usage not limited to USPSA, 3-Gun, SOF, CQB
  • Normal and subnormal baffles for maximum brake performance and reduced high velocity gas blow back
  • No bottom ports
  • Vertical gas ports to mitigate muzzle rise (can be clocked to mitigate torque as well)
  • Designed and made in the U.S.A.

*Muzzle Timing Device sold separately.


  • Caliber: 7.62 NATO / .308 Win. / 300 Blackout
  • Material: Hardened steel
  • Finish: Mil-Spec black finish
  • Weight: 6.4 oz.
  • Length: 2.6"
  • Diameter: 1.2"
  • Thread: 5/8"-24


  • .308/300 Blackout barrel with 5/8"-24 thread pitch


When you need a muzzle brake for .308 that can hold its own no matter where you use it, look no further than the Rex Silentium Q-type Muzzle Brake. Don’t let the compact size of this one fool you. It may be only 2.60-inches long, but it out-perform the competition at the range or in tactical situations. Not only is it designed to do the job, but quality hardened American steel will take anything you can dish out, including the harshest of military propellants.

You know when you choose the .308 Q-Type Extreme Duty Muzzle Brake from Rex Silentium you’ll get a top quality muzzle device. After all, this is what they do. Muzzle brakes aren’t a sideline for them, they’re the reason they’ve come to play.

The Rex Silentium .308 Q-Type Extreme Duty Muzzle Brake uses a combination of subnormal and normal baffles. While it gets its backbone from the 7.62 NATO specs, it goes further to give you awesome performance with numerous cartridges. The Q-Type Muzzle Brake manages both muzzle rise and recoil forces so that you can stay steady on target or acquire the next target without fighting excess movement. Every shot is sent away to its intended target without a doubt.

Not only has Rex Silentium included a set of 12-o’clock ports that can be timed to control either muzzle rise or torque, but they haven’t forgotten the practical side. They’ve left off the bottom ports to save you the hassle of dust printing when shooting prone.

Whatever your situation, whether you’re shooting 3 Gun, or defending your position from hostile fire, the Rex Silentium Q-Type Extreme Duty Muzzle Brake won’t leave you hanging.

Have a question?

Ask an Expert