M4E1 Upper Receiver Stripped

The Aero Precision M4E1 Threaded Stripped Upper Receiver is machined from 7075-T6 forged aluminum with an enhanced forging that gives it a billet look without the billet price. It accepts a standard AR15 barrel nut, making it compatible with most free-float handguards on the market. Features include M4 feedramps, .250" takedown pin holes, and laser engraved T-marks.

The Picatinny profile is designed to blend seamlessly with Aero Precision R-ONE, S-ONE, and Enhanced Handguards, though it works with any standard AR15/M16 upper components. Shipped stripped with only a threaded forward assist roll pin included. Port door and forward assist are not included.