Bushmaster's Hunter Carbine rifle offers the big game hunter AR speed and accuracy. The powerful 450 Bushmaster cartridge, developed in affiliation with Hornady, is tamed by the AR-type gas operating system so recoil is reduced to a heavy thump, and second shot control is retained. It has a free-floating, vented aluminum forend. The upper and lower receivers are machined from a Mil-Spec aluminum forging. Standard AR-type 30-round magazines are fitted with a blue single stack follower to yield a magazine capacity of five rounds. The 450 Bushmaster ships with one 5-round magazine and a black web sling. This model has a 20" barrel.