3rd Generation Premium AR-15 80% Billet Lower Receiver
ARsUnlimited 80% Billet Lower Receiver is uniquely CNC precision mill spec machined from solid 6061 aluminum. Our design is made for the serious AR-15 builder with Additional features such as flared magwell, deep Fire / Safe engraving on right and left sides, threaded bolt catch and pin, threaded takedown pin spring catch, trigger slack eliminator screw and threaded upper receiver lock. All made from premium 6061 quality aluminum. Bar none this is one of the finest lower receivers on the market!