Knights Armament (KAC)
3 Port Brake featuring our Dual Taper Locking System™, compatible with our Radiant762, Surge 7.62, Razor 7.62 and Micro30. This muzzle device is designed for reducing recoil when shooting unsuppressed. The 3 Port Brake has a .30 cal aperture, but the 1/2×28 variation can be permanently attached to 5.56 14.5″ barrels in order to meet 16″ requirements.
Available in 5/8"x24 and 1/2"x28
Additional Information: Muzzle Device Mounting Instructions