Nitecore headlamp handlebar mount

It was designed for a Nitecore HC65 UHE headlamp, but it can fit other headlamps with the similar body diameter (23.6mm in this case).
This mount utilizes rubber o-rings of 4.5mm diameter.

It is the right part. To get the left one, just mirror it.

I've made two variants for different handlebar diameters: 31.8mm and 35mm.

There is a groove for a rubber pads to provide normal friction between the mount and a handlebar. I've used a piece of old bicycle tube with two-sided glue tape. Tested on stairs, rocks, roots, bunny-hops. Stays in place.

As a bonus: battery spacer for HCC65 UHE to use it with standard 18650 batteries. It utilizes a magnet d:8mm h:5mm.

FreeCAD model is parametric.