The Alex Pro Firearms APF-15 Thumper chambered in .450 Bushmaster is a heavy-hitting, American-made semi-automatic rifle engineered by APF Armory in Alexandria, Minnesota. It is highly regarded for big game hunting, especially in states with straight-wall cartridge restrictions. [1, 2] Key Specifications & Design Caliber: .450 Bushmaster straight-wall cartridge Barrel: 16-inch barrel optimized for high terminal performance Capacity: One 10-round single-stack magazine Handguard: Free-floating M-LOK system for easy accessory and optic mounting Furniture: Equipped with a standard pistol grip and an adjustable stock GOOD CONDITION AIMPOINT PRO RED DOT INCLUDED