My dad has owned a Mossberg Thunder Ranch for a year and just took it out for the first time when I was visiting him and mom. Turns out he doesn't like it and rather have something else. Ok dad, well lets sell it and we will go shopping for a replacement, "nah" he replies, lets just call it an early inheritance from father to son..... I am going to get a Judge that I have been eyeballing. I tried, not very hard, but I did try to disuade him from just giving me the shotgun. Anyway, due to my dad's very generous gesture I now need a tactical light for the rail, any suggestions?