Aero Precision's M4E1 Enhanced Upper Receiver is a new take on the way the handguard attaches to the upper receiver on AR-15/M16 platforms. The upper receiver is made from forged 7075 T6 aluminum with the handguard mounting platform forged as an integral part of the receiver. The receiver also features M4 feed ramps, laser engraved T-marks, hard coat anodizing, accepts standard AR-15/M16 components, and includes the barrel nut and wrench. Mfg: Aero Precision SPECS: Material: Forged 7075 T6 Aluminum with hard coat anodized finish.
