The Brownells M16 5.56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5.56x45mm, 300 AAC Blackout or .223 Remington.
The Brownells M16 5.56 Complete Bolt Carrier Group is constructed with a bolt made from 9310 steel, which is finished with a heat treatment and shot peening. The carrier is fabricated from 8620 hardened steel. Each element of the bolt-carrier group is finished in a black-nitride coating.
- Magnetic-particle inspected material
- Extractor includes spring and rubber insert
- Includes torqued and staked gas key
- Functions with any cartridge based on the 5.56 NATO cartridge case
The Brownells M16 5.56 Complete Bolt Carrier Group comes with a bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.
GEISSELE AR-15 ENHANCED TRIGGERS
The Geissele 2 Stage Enhanced Trigger (B-G2S-E) provides superior control and helps accuracy while maintaining the robustness and reliability that Geissele triggers are known for. The B-G2S-E gives a smooth, light 1st stage take up of 2.3lbs and a crisp, candy-cane-like 2nd stage break of 1.2lbs. The B-G2S-E is ideal for use in precision Squad Designated Marksman type rifles where weapon accuracy and reliability are critical.
B-GRF (Geissele Rapid Fire)
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.