AERO AR15 6.5GREN BCG W/9310 BLK

This high quality bolt carrier group is a valuable addition to your 6.5 Grendel/6mm ARC build.

• M16-cut carrier
• Machined from 8620 steel
• Type 2 Bolt Face (.136)
• Carrier has forward assist serrations
• Black Nitride Finish - advanced lower friction coating that minimizes the need for lubricants and cleaning
• Properly staked gas key
• 6.5 Grendel Bolt is machined from 9310 tool steel
• Shot peened
• HPT tested/MPI marked
• Black o-ring insert on extractor
• High quality BCG