OK, I have a question... I recently purchased a Glock 23, and love it by the way. So to make a nice nightstand combo, I thought I would purchase a weapon light. So, to Ebay I go, and buy a Surefire X200 thinking that it would make a good combo. Well, I got the light today and everything is cool except for the fact that it will not lock into the slot on the light rail of my 23. What's the deal? Did I just make a bad purchase or is there a solution to my problem? Please advise. Thanks.