I just purchased a Surefire X200A for my Kimber Warrior. I have not yet had a chance to try it out on the gun. The light came with two different adaptors, one described as Universal/Standard (which I believe is the one that came installed on it) and the other is the 1913 Picatinny adaptor. My question is which one do I need for my Kimber Warrior. Question #2: Does anybody know what rails other guns use? Specifically Glock, but I would be interested in rail specs of other manufacturers as well just out of curiosity. Which ones use Universal Standard and which ones use 1913 Picatinny? Thanks!