The CMMG AR-15 A1 Receiver Extension is a precision-engineered component designed for AR-15 enthusiasts seeking authentic performance and reliability. Crafted with meticulous attention to detail this A1-style receiver extension offers a classic and robust design ideal for those who appreciate the traditional aesthetics and functionality of the original AR-15 platform. Its high-quality construction ensures durability and seamless integration with your rifle enhancing overall stability and shooting experience. Whether you're restoring a vintage AR-15 or building a custom rifle this A1 receiver extension provides the perfect blend of heritage and modern engineering.