The Aero Precision 5.56 bolt carrier group is a high quality AR-15 bolt carrier group made from high quality machined steel. This bolt carrier group is the perfect compliment to our stripped upper receiver. For those who are building their own AR-15, this Aero Precision bolt carrier group delivers a high standard of performance.
Comes in Black Nitride.
Take a look at this video from Aero Precision with more information on your AR-15 upper receiver.