The CMMG Pistol Receiver Buffer Kit provides essential components to complete an AR-15 pistol lower group. The kit includes a pistol receiver extension with an ambidextrous sling end plate, a carbine buffer assembly, and a carbine action spring. It is designed for use with 300 AAC Blackout and 5.56mm pistol builds and is intended to pair with a lower parts kit to finish a pistol lower assembly.
Key Specifications
- Includes a CMMG pistol receiver extension with ambidextrous sling end plate as part of the kit.
- Includes a carbine buffer assembly to interface with the receiver extension.
- Includes a carbine action spring for standard carbine buffer operation.
- Designed for use with 300 AAC Blackout and 5.56mm pistol builds.
- Intended to be combined with a lower parts kit to complete a pistol lower group.
- Category is listed as AR Buffer System.
- Manufacturer listed as CMMG.
- UPC: 815835017099.
This kit supplies OEM-compatible components for assembling an AR-15 pistol lower group and streamlines the build process. With its ambidextrous sling end plate and carbine buffer components, it provides a straightforward foundation for range-focused pistol builds and defensive-configured pistols when paired with the appropriate lower parts kit.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




