Savage Arms 57554 : MDT Aluminum Chassis with Olive Drab Skin, Adjustable Comb & LOP Spacers, M-Lok Forend, AccuTrigger, Carbon Steel Threaded Heavy Barrel 5/8-24, Detachable 5-round Aics Magazine.Savage has expanded the AXIS II line to include a chambering for 300 Blackout providing the ballistics that made the cartridge famous in a bolt-action platform built for hunters. The light compact rifle gets the most performance from 300 Blackout thanks to its 16 1/8-inch heavy barrel with threaded muzzle for use with a suppressor or muzzle brake. It also carries the AccuTrigger.