Hi, Has anyone ever tried doing this? The reason I'm asking is because I have a new Colt Commander .45 slide and a slightly used Colt Gold Cup .45 5" national match barrel which were given to me by a friend. Its just gathering dust so i'm thinking of mating the two together to build a Commander top end. Is this possible or even feasible? If so, who is the best gunsmith to go to for this? Thanks Frontsight Wanna kill these ads? We can help!