RE: Gun Mount Laser?
only laser I've used was on a 9mm pistol, and came to hate it rather quickly! To use it just totally changed the way I shoot, you're looking at a laser dot and trying to move that dot by moving the pistol, rather than aiming the rifle on the target.....
AR15 is different from a 9mm, but if I were going to put anything on a pistol, it would be a light, not a laser. Not sure I'd want a laswer on a AR15 either for the same reason.