Sku: 57140 Caliber: 450 BUSHMASTER Handed: Right Rate of Twist: 24 Weight: 7.9 lbs Overall Length: 37.5-38.5″ Barrel Length: 18″ Ammo Capacity: 4 Series: 110 Series Magazine: Detachable box Stock Material: Synthetic Barrel Material: Carbon Steel Barrel Finish: Matte Barrel Color: Black AccuTrigger: Yes AccuStock: Yes Features: AccuFit System, Muzzlebrake, Magpul AICS Magazine, One-piece Rail, Soft Grip Fore-end and Pistol Grip Surfaces