Aero Precision M4E1 Complete Lower 5.56 Magpul STR Stock

The Aero Precision M4E1 Complete Lower Receiver is a state-of-the-art foundation for building or upgrading your rifle. Meticulously designed to accommodate both 223 Remington and 556NATO calibers, this lower receiver features high-end components such as the Magpul STR Stock and Magpul MOE Grip in a sleek, anodized black finish. This setup promises not only superior ergonomics but also unparalleled reliability and precision.