Smith Enterprise has developed a new National Match style Muzzle Brake using the "Good Iron" port pattern, and slimming the profile of the brake down to match the dimensions of a USGI flash suppressor. It is a 2 piece brake, with the front end manufactured from 8620 steel which has been salt-bath nitrided for a 60 RC hardness and superior corrosion resistance and durability. The adapter is manufactured from 1144 fatigue proof steel with a standard dovetail on the top and the internal splines and castle nut hole have been wire EDM cut. The adapter has also been salt-bath nitrided. The overall length of the brake is 4.25". This brake should be legal for use in all CMP matc Mfg: Smith Enterprise SPECS: M14 USCG/Navy Muzzle Brake – 1144 Stress proof steal, heat-treated. Manganese Phosphate. Diameter 0.860", overall length is 3.400"., weight 0.31 of a lb. Two piece design with 5/8 x 20 TPI threads (RH). Marked: U.S.C.G. Smith Ent.
