LaRue finally got around to shipping out UBRs, mine showed up a couple hours ago so now my SBR is technically done. Its a Sun Devil billet lower, the upper is one of the first Vltor forged MURs, 7.5" Shaw barrel, Daniel Defense Lite rail, Surefire M910A light, Burris Fastfire in a LaRue Irondot mount, LaRue/Troy BUIS, Noveske KX3, Magpul UBR, Pmag and MIAD grip, bolt and CH from Josh at AO Tactical, KNS Gen 1 pins, and Ergo ladder covers. I think I've managed to build the heaviest SBR ever put together. ETA: Weighs 9 pounds.