Well-made, sturdy weapon light! - SureFire X300 Ultra LED Weapon Light

The X300U is a solidly built weapon light. It was difficult to mount the light on my Staccato HD P4.5. It took me awhile to realize the mounting plate on the X300 was "universal" instead of "picatinny", so I followed the directions to swap it out. The Staccato and the X300 are both built to tight tolerances, so getting the light to slide onto the rail was a struggle - I'm sure the screw on version is easier to mount, but doesn't have the ability to be taken off without a screwdriver (or potentially a cartridge). You need to get it lined up perfectly (I can't stress this enough), use significant pressure, and very gently rock it side to side to get started, then it slides into place. I read some people file down the high points to make the mounting easier. Once it's mounted it fits like a glove - zero wiggle. The switches are easy to use and the light is extremely bright.

I know I complained about the mounting process, but it was only irritating, not a reason to avoid purchasing. I believe the tight fit contributes to the rock solid steadiness once it is mounted. The Staccato also contributed to the mounting struggle because of its high build quality. I assume a polymer frame would be a lot easier.