Experience the raw stopping power of the "Thumper" with this rugged .450 Bushmaster hybrid, featuring a precision-fit Rock River Arms LAR-15 lower paired with a specialized Bushmaster upper. Built for hunters in straight-wall cartridge states and brush-country marksmen, the 20 inch heavy barrel maximizes muzzle velocity while the fixed A2 rifle stock provides the necessary stability to manage the heavy-hitting recoil of this big-bore platform. This used, high-performance rifle features a sleek, knurled free-float handguard for superior handling and a consistent point of impact.