KD C8 lens

Does someone make coated lens for the KD C8? I searched their site and couldn't find any.

Do you mean something like THIS + LDF (size: 41,8 ) ?

flashlightlens.com CS is superb. They sent me the wrong lens, I emailed them and they sent another one out right away-no return needed!

Thanks guys! I measured mine and I believe it's 41.4mm but I think those will work. I appreciate your help.