BC-15 AR-15 18" Heavy Barrel in .350 Legend, parkerized finish, mid-length carbine gas system. Barrel crafted from 4150 Chrome Moly Vanadium with a 1:16 twist and 5/8-24 thread pitch. Non-fluted, parkerized heavy profile designed for AR-15 platforms. Weight approximately 2.75 lb. SKU 2002-B350LCHB18116P.