350 Legend 18" Barrel 1:16 MP Carbine Gas System Nitromet
350 Legend 18" Barrel 1:16 MP Carbine Gas System Nitromet, Match-quality 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.