The Aero Precision AR-15 barreled upper receiver is the perfect foundation for your next custom AR-15 build. Forged from 7075-T6 aluminum and precision machined to M4E1 specs, this receiver will ensure proper fit with Mil-Spec and aftermarket parts. It is finished in matte black hardcoat anodizing and features laser engraved T-marks.
This 16” .300 Blackout barreled upper comes with the Atlas R-One M-LOK free float handguard. The handguard features a full length picatinny top rail and a slim 1.3″ inner diameter. It is constructed of 6061 aluminum and finished in Type III hardcoat anodizing.
Whether you are building a new rifle or upgrading an existing one, the Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver is a great choice.