The CMMG AR-15 Ejection Port Cover Spring is a precision-engineered component designed to ensure reliable performance and enhanced durability for your AR-15 rifle. Crafted from high-quality materials this spring offers optimal tension and resilience effectively keeping the ejection port cover securely closed when not in use and allowing smooth operation during firing. Ideal for both new builds and replacing worn-out parts this ejection port cover spring is a must-have for maintaining the peak functionality of your AR-15. Whether you're a seasoned gunsmith or a firearm enthusiast this component promises seamless integration and lasting performance.