Just a FYI:
Colt has only rarely stamped "1911" on any of their commercial pistols. The ones made for the military were the Model of 1911 and M1911A1, which were the designations assigned to them by the government, and were so marked on either the slide or frame. But the ones made for the commercial market were called Government Models, meaning they were a commercial version of the same guns being sold to the government. The truth is that the ones sold to the US government were the only REAL 1911 and 1911A1 pistols ever made. The various civilian firms can call theirs whatever they want, but they are merely 1911-type pistols. Even Colt's pistol is merely a "1911-type" called the Government, Commander, Gold Cup, or whatever.
Therefore, except for the recent WW1 and WW2 reproductions you usually won't find "1911" or "1911A1" anywhere on a Colt. Sure they did make the "M1991A1", but that was just a cute marketing gimmick as there was never an "M1991A1" designation by the military.
