My Viridian C5L arrived this week and I took it to the range today. It is much smaller and more compact than the X5L. Its fit on the P250C looks perfect. At first I could not get it to turn on, but found you really have to crank on the battery cap to get a good connection. It has a large finger-tip size button. You can set it to laser only, light only, light and laser, and strobe mode for both light and laser. You can also buy a version with just the laser and not the light. It comes with three sets of rail adapters for all kinds of guns.

The laser was rock solid while putting 100 rounds through the P250. As I mentioned elsewhere my groups are much tighter when I'm using a laser. This one is a keeper.