Aero Ar15 5.56 Bcg W/9310 Blk Ntrd

This high quality bolt carrier group is a valuable addition to your AR15 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
• Shot peened
• HPT tested/MPI marked
• Black o-ring insert on extractor
• High quality BCG