Glfa ar15.450 bushmaster 18" s/s bbl tungsten grey FEATURES:Caliber: .450 BushmasterTwist: 1:24"Barrel Length: 18"Magazine Capacity: 5 roundsOverall Length: 38.5"Weight: 8.05lbs.Action: Semi-Automatic1-5 round modified black Lancer magazine15" M-Lok aluminum handguards Other Features: Forged upper/lower,.450 bushmaster chamber, milspec controls, pistol grip, and 6 pos collapsable stock tungsten grey cerakote finish 15" mlok aluminium handguard comes with 1 5rd modified black lancer magazine stainless steel barrel and muzzle brake