Aero Precision M5 Complete Lower .308 Win w/ UBR GEN 2 Stock

Aero Precision APAR308220: The M5 Complete Lower Receiver is the perfect base for your custom big-bore AR build. This complete lower features Aero Precision\'s custom designed M5 Lower Receiver and is upgraded to include a MOE Grip and UBR Gen2 Collapsible Stock. Includes: M5 Stripped Lower Receiver MOE Grip - Black UBR Gen2 Collabsible Stock - Black Lower Parts Kit Integrated UBR Custom Receiver Extension Tube M5 Carbine Buffer and Spring These parts are installed Aero Precision\'s M5 Lower Receiver sets the standard for big-bore AR builds. This custom designed enhanced forging is machined from 7075-T6 Aluminum and works with standard AR308 components and magazines. It has been engineered with upgraded features, including a threaded bolt catch roll pin, integrated trigger guard, upper tension screw, threaded takedown pin detent recess and increased magwell flare. It uses custom takedown and pivot pins as well as an extended magazine catch button which are included in this assembly.