Lower Receiver Assemblies with Trapdoor for 5.56mm/.223 Cal
|Fully assembled and ready for an Upper Receiver - Solid A2 Buttstock (5/8" longer than the original A1) ncludes "trapdoor" storage compartment.
-Manufactured to latest Military Specifications for the M16 A2 rifle/carbine,
-Precision machined high tensile strength 7075 T6 aluminum alloy forging- not a casting,
-Exterior is grit blasted to produce a non-reflective matte finish,
-Protective finish: Hard Anodize Military A8625, Type III, Class II finish- lusterless (flat, approximate black no. 37038 table IX- with a nickel acetate final seal coat),
-Latest M16 A2 design reinforcement area around front pivot pin and reinforcing ridge over buttstock attachment area,
-Full "fence" around mag release button protects from accidental release,
-Bushmaster Mil. Spec. Lower Receivers are guaranteed for fit and function- and this guarantees the interchangeability designed into the weapons system if you ever buy a 2nd upper/barrel assembly,
-Standard military push pin design with captivated pins front and rear.