CMMG Receiver End Plate Mk4

The CMMG Receiver End Plate Mk4 is a precision-engineered component designed for modern sporting rifles and tactical platforms that demand reliability under demanding conditions. This receiver end plate serves as a critical structural interface where the buffer tube connects to the receiver, providing a secure mounting point for stock assemblies and recoil management systems. Whether you're building a duty rifle, competition carbine, or personal defense platform, the receiver end plate is non-negotiable hardware that ensures proper alignment and retention.

The Mk4 design incorporates CMMG's proven engineering standards, delivering a compact footprint measuring 4.45 inches in length with minimal profile at 0.25 inches thick—ideal for tight-tolerance receiver geometry. At just 0.05 pounds, the end plate introduces negligible weight while maintaining the structural integrity required for buffer tube retention and recoil spring positioning. The hardened construction withstands repeated cycling, hammer strikes during assembly, and the constant lateral forces generated during fire, ensuring zero creep or play at the receiver interface over thousands of rounds.

Armorers, gunsmiths, and shooters building or maintaining AR-platform rifles will appreciate the CMMG Receiver End Plate Mk4 as a drop-in replacement or OEM component. Installation requires basic hand tools and takes minutes during receiver assembly or upper-lower separation. This plate is compatible with any AR-15 or modern sporting rifle platform using standard buffer tube diameters and receiver extension dimensions, making it a universal upgrade for those demanding maximum reliability and precision fitment in their firearm builds.