AR-15 5.45x39 Bolt Carrier Group (BCG) Complete Assembly

AR-15 5.45x39 Bolt Carrier Group (BCG) Complete Assembly. This BCG has been tested by the US Army and fits standard M4s.

• M16 Carrier Machined from 8620
• 5.45x39 Bolt Machined from 9310
• Forged Gas Key Properly Staked
• Functions with standard dimension firing pin
  
• HPT/MPI
• Limited Lifetime Warranty