Aero Precision .224 Valkyrie/6.8 SPC Bolt Carrier Group, Complete - Black Nitride - APRH100878C

Aero Precision APRH100878C: This high quality bolt carrier group is a valuable addition to your .224 Valkyrie/6.8 SPC 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