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
