The Faxon 5.56 Gunner Lightweight 9310 Bolt Carrier Complete is a top-quality upgrade for your AR-15 rifle. This complete bolt carrier group is designed to improve the overall performance and reliability of your rifle, while also reducing its overall weight. The Gunner Lightweight design of this bolt carrier group is optimized for improved performance and reliability. The reduced weight of the carrier and the enhanced cam path ensure smoother cycling, faster follow-up shots and reduced recoil. The forward assist serrations are easy to grip, allowing you to quickly and confidently charge your rifle. This bolt carrier group is compatible with all mil-spec AR-15 rifles. Features forward assist serrations; compatible with dust covers; maintains Full-Auto Trip Sear for full-auto and the multi-stage trigger. We selected Salt Bath Nitride for all the carriers components for functionality and matching our barrels