Fenix E21 Tail cap size?

ChadSchu

Newly Enlightened
Joined
Feb 21, 2013
Messages
6
Can someone please tell me the tail cap size of the My Fenix E21? I have looked everywhere and search several places and I cannot figure out what size it is. I am looking to replace it with a glow in the dark tail cap. Any suggestions on where to find these as well would be greatly appreciated.
 
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