I see some of the XM-L2 Z1’s are sold with an extension tube, I presume it gives more user time. does anyone have experience with this?
I just order one with the Tube. Just curious on what to expect 
I see some of the XM-L2 Z1’s are sold with an extension tube, I presume it gives more user time. does anyone have experience with this?
I just order one with the Tube. Just curious on what to expect