MPN: 5T5


  • 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: .223 Rem / 5.56 NATO
  • Material: Hardened steel
  • Finish: Mil-Spec black finish
  • Weight: 5.29 oz.
  • Length: 2.7"
  • Diameter: 0.98"
  • Bore Diameter: 0.27"
  • Thread: 1/2"-28


  • .223/5.56 barrel with 1/2"-28 thread pitch


When you need a quality muzzle brake for the AR-15 or .223 caliber rifle that’s stood up to its share of real-world testing, you don’t need to go any further that the Rex Silentium Gen 5 TriDelta Muzzle Brake for .223 /5.56. The Gen 5 TriDelta is one of the finest all around muzzle devices available for the AR-15. It mitigates the forces that cause muzzle rise and recoil and also reduces muzzle blast and concussion.

The Rex Silentium TriDelta Muzzle Brake features two gas ports at 12 o’clock that keep muzzle rise at bay while the large baffles down the sides of the brake are optimized for the control of recoil. Designers left the bottom of this brake solid so dust printing isn’t an issue. The TriDelta Muzzle Brake is manufactured from high-quality U.S. steel by the American craftsmen of Custom Muzzle Brakes. The TriDelta for .224 and smaller bores is threaded to 1/2 inch by 28. It weighs in at just 5 ounces with an overall length of 2.9 inches and a diameter of 1 inch. The Rex Silentium TriDelta Muzzle Brake for 5.56 / .223 is finished in a durable Mil-Spec black phosphate coating that looks good at the range and resists corrosion in the field even in harsh environments.

When you want a muzzle device that does it all and won’t let you down, chose the Rex Silentium TriDelta Muzzle Brake for 5.56 / .223. It will keep recoil forces and muzzle rise under control and direct blast concussion and noise away from you every time you shoot. You’ll maintain contact with the target and limit the punishment you suffer when you shoot. Reduced motion and distraction make for a better performance every time.

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  • This Item: Rex Silentium TriDelta Muzzle Brake (5.56/.223)
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    MSRP: $49.50
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