Aero Precision 5.56 Bolt Carrier Group Black Nitride

This high quality bolt carrier group is a valuable addition to your AR15 build.
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
5.56 Bolt is machined from Carpenter 158 tool steel
Shot peened
HPT tested/MPI marked
Black o-ring insert on extractor
High quality BCG