x300 on an AR rail

[samuse]

I use an X300 with the Picatinny slot key and it's TIGHT on Knight's, Daniel Defense and La Rue rails.

[Alaskapopo]

How do you get it to stop rattling around? I know the x400 (the laser/light) has a screw that tightens down because otherwise the laser would lose zero, but I haven't found any way to stop my x300 from sliding just enough to make noise.

It comes with two insertes. The U is for universal pistol rails and the P is for picitany rails used on rifles. Make sure you have the right insert in the light.
Pat

[austing43801]

If you still have problems I use no stick madical wrap the foam stuff and place it on the rail it tightens up a lot

[Koshinn]

I got the P part from surefire... Quick mailing, no charge. Definitely has my repeat business now.

It still rattles around a tiny bit but it's good enough now!

[TheJRK]

Make sure the little screws on the bottom of the X300 are tight enough too. Sometimes they "look" tight but you can wiggle them around.

[Ky Bob]

How do you get it to stop rattling around? I know the x400 (the laser/light) has a screw that tightens down because otherwise the laser would lose zero, but I haven't found any way to stop my x300 from sliding just enough to make noise.

I have the same problem with mind. Glad I found this thread and a cure for it.

[Koshinn]

I have the same problem with mind. Glad I found this thread and a cure for it.

Surefire has great CS. I'm actually starting to wonder why companies like Surefire, Rainier, SKD, S&W, G&R, Brownells, and others have such great CS. I mean is it that firearms companies tend to be nicer? Maybe being veteran owned and supporting has something to do with it?

I wonder what the reasons are. Hm. But I'm not complaining!