Cmmg Receiver Extension Pstl

The CMMG Receiver Extension Pistol tube is a precision-engineered component designed for AR-15 pistol platform builds and upgrade projects. This receiver extension serves as the critical mounting interface between the lower receiver and pistol buffer tube assembly, providing the backbone structure for custom pistol configurations. CMMG's receiver extension is engineered to match exact mil-spec tolerances, ensuring reliable fitment with standard AR-15 lower receivers and compatible buffer systems across diverse build configurations.

Weighing 0.25 lbs and measuring 4.5 x 1.5 x 8.75 inches, this pistol receiver extension integrates seamlessly into compact AR-15 pistol platforms where modularity and space efficiency matter. The tube's compact dimensional profile supports the shortened overall length characteristic of pistol-configuration AR-15s, while its standardized construction allows straightforward integration with aftermarket stocks, braces, and buffer tube assemblies. The precision-machined interface ensures minimal play between components and maintains the structural integrity essential for reliable cycling during live-fire applications.

This component is ideal for builders constructing AR-15 pistols from 80% lower receivers, gunsmiths upgrading existing platforms, and operators refreshing or customizing pistol-caliber builds. Whether assembling a 9mm, .45 ACP, or 5.7x28mm AR-15 pistol variant, this receiver extension provides the standardized mounting surface required for proper assembly. It suits both range shooters experimenting with pistol platform configurations and end users seeking to upgrade existing builds with OEM-specification components.

CMMG maintains a recognized position in the AR-15 aftermarket for producing components with tight tolerances and consistent quality. As a standalone receiver extension, this part requires professional-level assembly knowledge and compatibility verification with your specific lower receiver and buffer system. Buyers should verify fitment with all intended components before assembly to ensure the smoothest integration into their custom platform.