The Aero Precision Assembled Upper Receiver arrives with the port door and forward assist factory installed. Crafted from a 7075-T6 aluminum forging machined to MIL-SPEC including M4 feed ramps. The upper is then Type III Class 2 hardcoat anodized and laser engraved with T-marks. Compatible with all MIL-SPEC AR-15/M16 components.
Machined for .250” takedown/pivot pins
Laser engraved T-marks
Includes port door and forward assist
Weight: 8.3 oz