350 Legend 18″ Barrel 1:16 MP Carbine Gas System – Nitromet™

Match-quality 18” barrel feature Nitromet salt bath nitride to give them maximum wear resistance and durability that standard barrel finishes just can’t match.  Barrel has a Nitromet nitrided bore treatment for longer life than chrome without affecting accuracy. Barrels are made of 4150 CrMoV, chambered for 350 Legend, button rifled with 1-16 twist rifling, and machined to a standard medium weight exterior profile. Gas port drilled for a carbine length gas system, .750″ diameter at the gas block. 5/8”-24 threads on the muzzle end.  Nitrided Barrel Extension.