AR-15 Upper Receiver Assembly is built to MIL-SPEC. Crafted from a 7075-T6 aluminum forging and machined with M4 feed ramps. The forward assist and ejection port cover have been factory installed. Features:

• 7075-T6 aluminum

• M4 feed ramps

• MIL-SPEC Type III hardcoat anodized black

• Picatinny rail