MPN: 5T-6


  • Optimized baffles for maximum brake performance and low noise from shooters position
  • 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: .308 Win / 7.62 NATO / 300BLK
  • Material: Hardened steel
  • Finish: Mil-Spec Black
  • Weight: 4.69 oz.
  • Length: 2.9"
  • Outer Diameter: 1"
  • Bore Diameter: 0.358"
  • Thread: 5/8"-24


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


There are a lot of options to consider when you look for a muzzle device for your rifle. Do you want a brake or a compensator? Do you have to worry about muzzle rise? Is concussion an issue for you? Despite the best intentions of many manufacturers, there aren’t a lot of devices out there that will cover more than one or two bases at a time. If you want a muzzle device for your .308 rifle that gives you a true sense of all-around control, look to Rex Silentium's Original TriDelta Muzzle Brake.

The TriDelta has been a popular muzzle device for operators who really want the best of everything in one package. The TriDelta features large main baffles to mitigate recoil forces and direct concussive forces away from the shooter effectively so you take less punishment and keep your weapon still. A line of upward facing ports decrease muzzle rise. The floor of the Rex Silentium TriDelta has no ports. Dust printing isn’t a problem, even when shooting from a prone position. When motion and distraction are limited, accuracy soars.

The Rex Silentium TriDelta Muzzle Brake in .308 is 1 inch in diameter and 2.9 inches long. It is precision machined in America by American craftsmen from only the best U.S. made steel alloy. Each one is covered in a tough Mil-Spec Black Phosphate coating that not only protects the device from the elements and the corrosive effects of propellants, but it gives it the sleek, aggressive look you want when you take it out to the range.

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