M4E1 THREADED ASSEMBLED UPPER

The Aero Precision M4E1 Threaded Assembled Upper Receiver is the perfect building block for a reliable and powerful rifle. Aero Precision machined these AR15 Upper Parts from rugged and lightweight 7075-T6 forged aluminum complete with your choice of finish that enhances corrosion resistance while also increasing strength. Each Aero Precision M4E1 Threaded Assembled Picatinny-Profile Upper Receiver includes a pre-installed port door and forward assist, and these receivers are crafted with an angular design for a unique aesthetic and improved performance. These uppers work with standard AR15/M16 components. Create an advanced weapon using the Aero Precision M4E1 Threaded Assembled AR15 Upper Receiver to boost your performance in the field or at the range. 

• Enhanced forging that gives the upper receiver a "billet look"
• Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
• M4 Feedramps
• .250 takedown pin holes
• Laser engraved T-marks
• Includes threaded forward assist roll pin
• Includes port door and forward assist