The CMMG Ejection Port Cover Kit includes everything you need to repair the ejection port cover on your modern sporting rifle. This AR ejection port kit comes with an M4 ejection port cover, rod, and spring. These ejection port replacement parts meet or exceed military specifications to ensure reliable performance and rugged durability. If you need to replace or repair the ejection port on your tactical rifle, the CMMG Ejection Port Cover Kit offers high-quality replacement parts to deliver smooth, reliable performance.
Replacement parts for M4 and MSR
Meets or exceeds military specifications
Kit includes M4 ejection port cover, rod, and spring