Batch Proof Tested AO Precision 5.56 M16 BCG Bolt Carrier Group – Nitride Coated

Description

Meets or exceeds MIL-I-6868, MIL-DTL-16232P & MIL-STD-171.

Specs:

• Shot peened 9310 hardened steel bolt
• Tool steel extractor and ejector
• Extractor spring, insert, and Viton O-ring installed
• 8620 steel carrier
• Properly torqued and staked Grade 8 fasteners
• Gas key sealed w/Permatex
• Mil. Std. cam pin and chrome firing pin
• Batch HP and individual MPI
• Individually test fired
• No metal injection molded (MIM) components