Aero Precision M4E1 Assembled Upper Receiver FDE – AR-15 Platform

The Aero Precision M4E1 Assembled Upper Receiver in Flat Dark Earth is a complete forged 7075-T6 aluminum upper designed for AR-15 builds in 5.56 NATO/.223 Remington and other compatible calibers. Features an integrated M4 feed ramp design for reliable feeding and an enhanced upper receiver platform with a squared-off front profile that eliminates the need for a separate upper receiver clamp block during assembly. The forward assist and ejection port cover are pre-installed.

This upper receiver arrives fully assembled with a Type III hard coat anodized finish in FDE. The M4E1 design includes a threaded brass deflector and tensioning screw provisions for a tight fit with compatible lowers. Compatible with standard AR-15 bolt carrier groups, charging handles, and barrel assemblies. Minor fitting may be required depending on manufacturer tolerances between upper and lower receivers.

• Platform: AR-15
• Material: Forged 7075-T6 Aluminum
• Finish: Type III Hard Coat Anodized FDE
• Feed Ramps: Integrated M4
• Includes: Forward Assist, Ejection Port Cover (Pre-Installed)
• Compatibility: Mil-Spec AR-15 Lower Receivers
• Installation: Requires Barrel, BCG, Charging Handle (Not Included)