CMMG MK4 Receiver Extension Black Steel – Factory Price

Specifications

Material—-Steel

WARNING: This product can expose you to chemicals including arsenic, which is known to the State ofCalifornia to cause cancer. For more information, go toWWW.P65WARNINGS.CA.GOV

Product Overview

The CMMG MK4 receiver extension is a black steel buffer tube designed specifically for MK4 AR platform builds. It provides the mounting and threading needed to run the buffer and action spring assembly for reliable cycling.

Key Features

• Mil-spec receiver extension threading for proper buffer and spring fit
• Black finish to match common MK4 build aesthetics
• Designed to work with the CMMG MK4 receiver extension system
• Steel construction for durability and stable alignment

Upgrade or replace your MK4 buffer tube with the correct CMMG receiver extension for a clean, solid AR build.