Built as varmit upper for 50-55 grain bullets. Custom built quality parts .223 upper. Very accurate, barrel corectly broken in, about 50 rounds fired. White Oak fluted barrel, 18" 1x12 twist, with manifold and gas tube. AP BCG and charge handle. J&S Billet Upper w/parts. Forearm rail YHM smooth custom HG. $750 or best reasonable offer.