This new BCA AR15 in 450 Bushmaster (Thumper) has one 7 round ASC stainless magazine , 16" Stainless Steel heavy barrel , mil-spec lower lower with 6 position adjustable stock, and 15" MLOK barrel shroud. 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 Right Side Charging Forged Rifle | 16” 416R SS Heavy Barrel | 1:24 Twist | Carbine Length Gas System | 15” MLOK | (.750 Gas Block)