Patriot Ordnance Factory 00308 Triple Port Muzzle Brake Black Nitride Steel with 1/2"-28 tpi Threads for 223 Rem, 5.56x45mm NATO AR-Platform

The nitride heat treated muzzle brake controls muzzle impulse for ultimate accuracy and an unbelievably soft recoil. It comes complete with a nitride heat treated collar and five (5) strike prongs.