Brownells 75th Anniversary - A Shooting Heritage
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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 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.
 

AERO PRECISION - M4E1 COMPLETE LOWER RECEIVER W/MOE GRIP & UBR GEN2 CARBINE STOCK

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