Check it out, F0x beamfilters make great tailcap gaurds...

[KDOG3]

I pop the lens out and keep them in my wallet. Since I don't have a E-series light, I don't use them. I can put the colored lenses in the FM34 I have though. They fit very nice on the standard sized tailcaps. Still let the light stand on end while the button is very accessible. It also fits perfectly inside a FM34 beamshaper, so if I get an e-series light I can still use it! I got a blue one on the way from Lighthound.

 

[Danintex]

Thats cool, I'll have to remember this. Except my L5 has an SWO2 on it.

 

[KDOG3]

Yup the other one I got coming will go on my Z2 Combatlight along with the FM34 or a rubber bezel guard I made from a destroyed FM27(?) beamshaper.