The M4E1 Complete Lower Receiver is the perfect base for your custom AR15 build. This complete lower features our custom designed M4E1 Lower Receiver and is upgraded to include a MOE Grip and UBR Gen2 Collapsible Stock. Includes: M4E1 Stripped Lower Receiver MOE Grip UBR Gen2 Collapsible Stock Lower Parts Kit Integrated UBR Custom Receiver Extension Tube AR15 Carbine Buffer and Spring These parts are installed Aero's M4E1 Lower Receiver delivers billet aesthetics at a forged price. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. It has been en Mfg: Aero Precision
