Aero Precision M5 .308 complete lower receiver in Flat Dark Earth with integrated trigger guard, M4 stock, A2 grip, and mil-spec lower parts kit. Ready to build.
The Aero Precision M5 represents a thoughtful approach to the modern rifle platform. This complete lower receiver provides a solid foundation for building a custom .308 AR-pattern rifle, arriving with all essential components ready for assembly.
Precision Engineering
Versatile Controls
This complete lower receiver arrives as a functional unit, eliminating the guesswork for builders. The included carbine-length buffer system is properly sized for .308 operation, and the receiver extension is ready for your chosen stock configuration. Whether you're building your first .308 AR or adding to an established collection, the Aero Precision M5 provides the reliability and precision you expect from a purpose-built platform.