Flashlight Tube Extender... 3xAAA to 18650 (Parametric)

I designed this thing so I could use 18650 Li-ion batteries in one of my small flashlights. The flashlight is the kind that takes 3x AAA batteries in a removable holder, with a tube/cap that have ~M24x1.25 threads. This particular flashlight needed a 16mm extension, which is what the STL file contains. There are also some flat spots where the flashlight o-ring seal seats, and a hole to pass 1mm wire through for ground (required for the light to work).

I printed 2 of these with Taulman Bridge