The M4E1 Complete Lower Receiver is the perfect base for your custom AR15 build. This complete lower features Aero Precision’s custom designed M4E1 Lower Receiver and is upgraded to include a MOE® Grip and UBR® Gen2 Collapsible Stock. Save when you buy it complete and let our specialists do the installation for you!
M4E1 Stripped Lower Receiver
UBR® Gen2 Collapsible Stock
Lower Parts Kit
Integrated UBR Custom Receiver Extension Tube
AR15 Carbine Buffer and Spring
These parts are installed
Our 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 engineered with upgraded features, including a threaded bolt catch roll pin, integrated trigger guard, upper tension screw, threaded takedown pin