The Aero Precision M4E1 Assembled Upper is a uniquely angular, black AR15 upper receiver, forged from 7075-T6 Aluminum, offering an enhanced body profile designed to accept a standard AR15 barrel nut. With meticulous construction, it is capable of working seamlessly with all mil-spec AR15 parts.
Specs
| Model No. | APAR700201AC |
| Model | Assembled Upper |
| Manufacturer | Aero Precision |
| Color | Black |
