CMMG Carbine Receiver Extension Kit for AR15 – Buffer Tube Assembly, Black (55CA6C7)

• Carbine receiver extension kit for AR-15 rifle builds and upgrades
• Includes receiver extension end plate buffer and spring for assembly
• Designed for use with carbine length buffer systems and configurations
• Constructed from anodized aluminum for durability and corrosion resistance
• Compatible with AR-15 rifles using carbine receiver extension setups
• Supports completion of lower receiver when combined with parts kit

The CMMG Receiver Extension Kit AR-15 Carbine Black is a buffer tube assembly kit designed for AR-15 rifles using a carbine-length receiver extension. This receiver extension kit includes the core components required for buffer and spring operation in AR-15 lower assemblies. It is designed for compatibility with standard 5.56 NATO AR rifle builds.

The CMMG AR-15 carbine receiver extension kit includes a carbine receiver extension tube, end plate, buffer, and buffer spring. It features a black finish with an anodized aluminum receiver extension and is configured for carbine-length systems. This product is used for assembling or upgrading buffer tube systems for range use or field setups. In standard configurations, the receiver extension assembly supports buffer movement and cycling within the rifle platform.