Aero Precision AR-15 5.56 Bolt Carrier Group

The Aero Precision® AR-15 5.56 Bolt Carrier Group is the perfect choice to upgrade your AR-15 rifle. This bolt carrier group (BCG) features a carrier machined from 8620 tool steel and a 9310 steel bolt for superior strength and long-lasting durability. What’s more, a corrosion-resistant black nitride finish also acts as a friction coating and reduces the need for lubricants and cleaning. Further, a properly staked and shot peened gas key helps ensure your rifle cycle’s properly while forward assist serrations help ensure intuitive use with your rifle’s forward assist. To top it off, this BCG is HPT tested and MPI marked to ensure unmatched reliability and quality out of the box so you can ensure your next rifle build is a success. Made in USA.