Aero Precision 5.56 Bolt Carrier Group - Black Nitride - APRH100615C

The Aero Precision Black Nitride Bolt Carrier Group (BCG) is a high quality addition to your AR-15 build.

Features:

• M16-cut carrier
• Machined from 8620 Tool Steel (Carrier) and 9310 Steel (Bolt)
• Carrier has forward assist serrations
• Black Nitride Finish – advanced lower friction coating that minimizes the need for lubricants and cleaning
• Properly staked gas key
• 5.56 Bolt is machined from Carpenter 158 tool steel
• Shot peened
• HPT tested/MPI marked
• Black o-ring insert on extractor
• High quality BCG