Build a capable, personalized carbine around the Aero Precision M4E1 PRO Complete Lower Receiver in OD Green Anodized. Designed for 5.56 NATO and .223 Remington platform builds, this American-made M4E1 lower pairs a distinctive finish with integrated ambidextrous controls for intuitive handling. Operate key controls from either side while maintaining your preferred grip, supporting efficient reloads, clear handling, and consistent control.
Supplied as a complete carbine lower, it comes equipped with an Aero Precision Enhanced Buffer Tube, Magpul MOE Grip, and Magpul MOE SL Stock—trusted components that provide a ready foundation for your compatible upper receiver. The carbine receiver extension and EZ Takedown / Pivot Pins make it straightforward to pair with M4E1 or AR-15 components and magazines.
- M4E1 PRO lower receiver with OD Green Anodized finish delivers a distinctive look for custom 5.56/.223 carbine builds.
- Ambidextrous bolt catch, magazine release, and safety support convenient operation from either side.
- Includes PRO Ambidextrous Safety and EZ Takedown / Pivot Pins for versatile setup.
- Aero Precision Enhanced Buffer Tube and carbine receiver extension are included for a compatible carbine configuration.
- Magpul MOE Grip and Magpul MOE SL Stock come installed for comfortable, familiar handling.
- Compatible with M4E1 and AR-15 components and magazines; select a matching upper and accessories to complete your build.
- Made in the USA; FFL dealer shipment is required.
Choose this Aero Precision complete lower for a well-equipped, American-made starting point with versatile controls, proven Magpul furniture, and a refined OD Green finish for your next custom carbine build.
