CMMG ZEROED Enhanced Lower Parts Kit AR-15

The CMMG ZEROED Enhanced Lower Parts Kit is a complete, mil-spec AR-15 lower parts kit designed to build out or upgrade a standard stripped lower receiver. Made in the USA, every component in this Enhanced LPK meets or exceeds military specifications, with all installation hardware included for a true turnkey install.

This kit delivers CMMG's ZEROED enhanced features across the major contact points of the lower. The package includes a ZEROED Drop-In Trigger, a ZEROED Pistol Grip, and a ZEROED Extended Bolt Catch. Each component is paired with the springs, plungers, detents, and roll pins needed for installation, plus the five color-coded packets of small parts CMMG organizes to make assembly straightforward and reduce bench-time guesswork.

Designed to meet or exceed mil-spec tolerances, this LPK is a drop-in solution for assembling an AR-15 lower from a stripped receiver or for refreshing worn components in an existing build. As a commercial lower parts kit, it is intended for installation into a serialized lower receiver by the end user; the kit itself contains no serialized component and no receiver.