I have this Mexican/Spanish copy of the 1873 Colt 1st Gen. revolver. I got it as a parts gun and have "looked" at it a few times over the years. I really would like to finish this up and make a decent shooter out of it. The gun came with an aluminum alloy backstrap and trigger guard. It seems to fit "OK", with a bit of hole filing. Does anyone know what this grip frame came from? And does anyone know how close the replica '73 parts (Pietta, Uberti, etc.) are to the original? I use that term loosely as it is obviously not a real Colt. Just as the Belgians made copies of Colts and S&Ws, etc, Mexico did too.