Sub-Assembly, Mil-Spec Parts Packaged In Money-Saving Kits

The easiest way to stock and sell genuine, mil-spec AR-15 parts, or use to assemble rifles on your receivers. Much lower in total cost than buying the parts one at a time. All kits listed contain only new, current-production, genuine, mil-spec parts; never pull-offs or direct-exchange surplus. Kit includes: bolt carrier, bolt, extractor, extractor spring, extractor pin, ejector, ejector spring, ejector pin, (3) gas rings, firing pin, firing pin retainer, cam pin, gas key and screws.