Zro Delta Ar-15 Forged M4 Upper Receiver 5.56mm
Zro Delta Ar-15 Forged M4 Upper Receiver 5.56mm, Forged M4 Upper Receiver with all the features you need. ZRODelta supplies this M4 upper with a matte black hardcoat anodizing. All receivers feature M4 feedramps. The 7075 forging is machined to the standard M4 or AR-15 contours. Includes accommodation for forward assist and ejection port cover. Mfg: Zro Delta