Barrel was purchased from Numrich Gun Parts and has never been fired. Manufacturer is listed as Colt but I can't be certain. Barrel was fitted to my full size Rock Island Armory 1911A1 Tactical and should be a drop in fit. It should be compatible with several different 1911 pistols but may require minor fitting. Barrel is non-ramped so make sure it's compatible with your firearm before purchasing. Some gunsmiting may be required. I prepped the barrel for match but I don't need it because my brother bought me a Kart barrel for my birthday and it shoots 1/2" groups at 25 Yards!