The Aero Precision 5.56 NATO assembled upper receiver for AR-15 is a no-compromise foundation for a reliable, accurate rifle build. Forged from 7075-T6 aluminum and precision-machined to mil-spec M16/M4 standards, this upper comes ready to go—port door and forward assist already installed. Whether you're building a new AR from the ground up or upgrading an existing platform, Aero's reputation for quality and fit is built into every upper they produce.

The Olive Drab Green finish strikes the balance between durability and aesthetics that appeals to hunters, precision shooters, and tactical builders alike. At just 8.35 ounces, it won't tax your overall rifle weight. The M4 feedramps ensure reliable feeding with a broad range of ammunition, and the laser-engraved T-marks serve as a reference point for proper upper and lower receiver alignment during assembly.

Aero Precision uppers are built to pair seamlessly with AR-15 lower receivers—including Aero's own lineup—for that tight, dependable fit that separates a premium build from a loose assembly. If you're serious about accuracy and reliability, starting with a well-machined upper receiver is the smart move. Drop this onto a quality lower, add your barrel and bolt carrier group, and you've got the backbone of a rifle you can trust.

The Aero Precision 5.56 NATO assembled upper receiver for AR-15 is a no-compromise foundation for a reliable, accurate rifle build. Forged from 7075-T6 aluminum and precision-machined to mil-spec M16/M4 standards, this upper comes ready to go—port door and forward assist already installed. Whether you're building a new AR from the ground up or upgrading an existing platform, Aero's reputation for quality and fit is built into every upper they produce.

The Olive Drab Green finish strikes the balance between durability and aesthetics that appeals to hunters, precision shooters, and tactical builders alike. At just 8.35 ounces, it won't tax your overall rifle weight. The M4 feedramps ensure reliable feeding with a broad range of ammunition, and the laser-engraved T-marks serve as a reference point for proper upper and lower receiver alignment during assembly.

Aero Precision uppers are built to pair seamlessly with AR-15 lower receivers—including Aero's own lineup—for that tight, dependable fit that separates a premium build from a loose assembly. If you're serious about accuracy and reliability, starting with a well-machined upper receiver is the smart move. Drop this onto a quality lower, add your barrel and bolt carrier group, and you've got the backbone of a rifle you can trust.