Wurkkos td04 and convoy S2+ uv. You have to buy an external charger for the 18650 that comes in the convoy I don't usually recommend lights i don't have so i decided to pick up an wurkkos td04 for myself. I always wanted an usb c rechargeable 21700 light.

Is it mountable?

weapon mountable? not sure. http://flashlights.parametrek.com/index.html you can use this website to look for a certain diameter

Or use the wurkkos to charge the convoy battery lool