But I can't find an 18 inch bull barrel! On some youtube videos the 16-inch ones seem to have a lot of muzzle flash. I don't really like the awkwardness of the 20 inch barrels, so the 18's were my choice. But I can't find them! Sans for those DPMS Mini SASS barrels, which are a full .936 inches thick from receiver to muzzle. Does anyone know who makes one? My search-fu only gives me DPMS and some online classifieds.