Aero Precision Bolt Carrier Group, Aero Aprh100615 5.56 Bcg Black Nitride
This bolt carrier is a valuable addition to your ar-15 build.It features a properly staked gas key, forward assist serrations, a black o-ring insert on the extractor, and is made of steel.
Finish: Black Nitride
Type: Bolt Carrier Group
Model: Bolt Carrier Group
Material: 8620 Steel