BCM Bolt Carrier Group

Bravo Company Manufacturing's standard phosphate bolt carrier group delivers the same quality control and attention to detail that has made BCM the industry standard for duty-grade AR-15 components. Machined to USGI specifications with enhanced quality control procedures, this BCG represents the baseline for reliability that professionals and serious enthusiasts expect. The carrier features a chrome-lined interior with a mil-spec phosphate exterior coating for corrosion protection.

The Carpenter No. 158 steel bolt is shot peened for increased strength and undergoes both high pressure testing (HPT) and magnetic particle inspection (MPI) to ensure structural integrity. The gas key is chrome-lined, phosphate coated, and secured with grade 8 fasteners that are properly staked per military specifications. BCM's enhanced extractor provides improved reliability with various ammunition types, while the M16 full-auto profile ensures reliable cycling in demanding applications.

This BCG represents BCM's commitment to producing components that meet or exceed military specifications while remaining accessible to civilian builders. It delivers the same reliability found in BCM's complete rifles at a mid-tier price point. For shooters building serious-use rifles who want proven performance without exotic coatings, the BCM phosphate BCG is the industry standard choice.