Reliability for the Discerning Operator
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.
Big Book Catalog, Issue:71, Page:011
The Aero Precsion M5 308 Lower Receiver allows you to build a custom big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface. Receiver fits DPMS pattern components, including magazines and upper receivers. Machined from 7075-T6 aluminum, and finished with a matte black hard-coat anodized Mil 8625 Type 3 Class 2 finish. Rear takedown pin detent hole threaded 4-40 to allow for a set screw to retain the takedown pin. Bolt catch is threaded for a screw pin, so that no roll pin is needed. Integrated trigger guard and selector markings that function with 45, 60 or 90 degree safety selectors. Accepts Battle Arms Development short throw safety selectors (100-009-866), but also functions with standard safeties.
AR-15, Issue:11, Page:007
Big Book Catalog, Issue:71, Page:007
SPECS: Fits - Gen 1 DPMS 308 components, including magazine and upper receiver.