This 5.56 NATO AR-15 lower receiver parts kit is made of all high quality, Made in the USA, Mil-spec parts. Each part is well made, durable and packaged in color coded bags for easy installation. This kit is an excellent choice for building or rebuilding an AR-15 rifle. Contains: Takedown Pin, Receiver Pivot Pin, Takedown Pin Detent (2), Takedown Pin Detent Spring (2), Bolt Catch, Bolt Catch Plunger, Bolt Catch Spring Pin, Bolt Catch Spring, Buffer Retainer, Buffer Retainer Spring, Magazine Catch, Magazine Catch Spring, Magazine Catch Button, Trigger Guard Assembly, Trigger Guard Pivot Spring Pin, Safety Selector, Selector Detent, Selector Detent Spring, Grip Screw Washer, Grip Screw. Does not contain a pistol grip.
The Geissele Rapid Fire Trigger (B-GRF) was developed to give semiautomatic-only rifles a glass-smooth trigger pull very similar to the Geissele Super Select Fire (SSF) trigger designed for the U.S. Special Operations Community . The B-GRF is a fast-shooting, smooth trigger ideal for 3 Gun competition and recreational shooting alike. It pulls like a single-stage, but resets like a two-stage. Two trigger springs are included so the B-GRF can be set up with a pull of either 4 lbs or 3.2 lbs. Does NOT convert semiautomatic rifles to automatic.