R GUNS 10.5'' HB A3 UPPER ASSEMBLY

R GUNS A3 FORGED RECEIVER MIL-SPEC HARD COAT ANODIZED 10.5″ 5.56X45mm NATO 1/7 TWIST WITH M4 FEED RAMPS NATIONAL MATCH GRADE BARREL TURNED TO CENTER STRESS RELIVED POLISHED CHAMBER MPI AIR GAUGED BARREL QUICK DETACH QUAD RAIL HAND GUARD A FRAME FRONT SIGHT VORTEX FLASH HIDER COMPLETE WITH BOLT ASSEMBLY AND CHARGING HANDLE