Mossberg Patriot Carbine bolt-actions are packed with features and are offered in eight calibers and a variety of suppressor-ready barrel lengths. These compact easy-to-handle rifles make a great choice for multi-game multi-season hunting. – Drop box magazine – Threaded/Medium Bull Barrels are muzzlebrake/supressor-ready – Recessed match barrel crown – Top-mounted picatinny rail – Spiral fluted bolt and oversized bolt handle – Patented LBA® user adjustable trigger (2-7 lbs) – Barrel Threading: 11/16-24 TPI – Specifications – Caliber 450 BUSHMASTER – Action Type Bolt-Action – Usage Hunting / Sporting – Barrel Type Med. Bull Threaded – Barrel Length 18 – Barrel Finish Matte Blue – Capacity 5+1 – Length 38.25 – LOP 13.75 – LOP Type Fixed – Sights Picatinny Rail – Stock Synthetic (Black) – Twist 1:24 – Weight 6.4