Bergara’s Omni Directional Muzzle Brake greatly mitigates felt recoil via a series of ports. This muzzle brake is compatible with the B-14 HMR, B-14 BMP, Premier LRP, Premier Ridgeback. Made from 416 stainless steel and is given a Nitride heat treated finish. Specifications: Outside Diameter: .840"Bore Diameter: .330"Threads: 5/8-24"Length: 2" Bergara Omni #3 Ridgeback/LRP/HMR/BMP.30 Cal .840" Muzzle Brake BA0013