Jetbeam E20r and E40r

I apologize, I was thinking of a different 16340 light I have. Yes the 18350 does fit, it’s super tight but, it does fit. Well let me say this, since I don’t have a 18350 to try. I can fit 30Q’s, VTC6’s, and HG2’s part way in the tube so i’m assuming 18350 cells will fit. Being there is quite a generous spring in the tail I don’t see a problem with a unprotected 18350 fitting just fine.