This new AR15 rifle by BCA in 450 bushmaster “The Thumper” has one 7 round ASC stainless steel magazine , 16" stainless steel heavy barrel with flash suppressor, mil-spec lower with 6 position stock, and lifetime warranty from BCA. Insured shipping is $55.00 to the continental U.S. where allowed and no card fees added at Deals on Guns. BCA website; BC-15 | .450 Bushmaster Rifle | 16” 416R SS Heavy Barrel | 1:24 Twist | Carbine Length Gas System | 15” MLOK | (.750 Gas Block)