As you can see in picture and description, there is no front oring but possible to install one tiny oring.Got mine. Of note is that there is no oring nor groove for oring on the E threading. Not sure if this is intentional but was not expected. I think I can jam one in there.
eala
[size=+1]More E Head, C Tail, 18650 body available.
Please check post #1 for next available number.[/size]
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