5.56mm AR-15 Uppers | High-Quality Components | Grid Defense

Complete 5.56 upper receivers are available in 7.5" and 10.5" for your pistol upper and 16" for rifle uppers. AR 15 5.56 upper are available in black anodized finish along with FDE, OD green, burnt bronze, blue titanium and tungsten grey in cerakote finish from Grid Defense. Ghost Firearms test fires every custom upper to verify cycling. That means finding the right 5.56 uppers for you has never been easier. Look no further and get your hands on our extensive selection of 5.56 upper receivers. We look forward to providing the tactical industry with top tactical accessories and shooters supply at dirt cheap prices.