David, regarding the rings, I'm guessing the top ring is used in 18500 mode? If so, would that mean no top ring(s) in 18650 mode? I think there's a pic showing 18650 mode with no rings. Just doing some guessing . . . .
Two rings are used and included with your purchase (and they can be purchased sperately too if you want the other material as they come in brass or stainless) The bottom slotted and threaded ring screws on the bottom and the top ring goes just behind the cap and is used in both 18500 and 18650 mode (and anything in between) I may make an even longer for 18650 mode at some time just as an optional dress up item to cover even more of the extension tube.



Last edited: