Aero Precision AR-15 5.56/.223 Bolt Carrier Group w/ Carrier Grooves - Black Nitride

These Aero Precision Bolt Carrier Groups are contract overruns originally produced for a specific customer who requested lube rings. Each unit is built to high standards and includes the added benefit of lube rings for improved performance and reliability. Perfect for those looking to enhance their setup with a quality component that exceeds expectations.Features M16-cut carrier Machined from 8620 steel Carrier has forward assist serrations Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning Properly staked gas key Bolt is machined from 9310 tool steel Shot peened HPT tested/MPI marked Black o-ring insert on extractor High quality BCGMade In United States of America