This is a ring to attach a lanyard to the Noctigon KR1/KR4 with 18350 battery tube.
Just screw off the tailcap, slide it over the tube (yeah, now it has three tubes!) and screw the tailcap back on. I designed it so that it can be printed without supports and with a 0.4 mm nozzle the thinnest part should be two perimeters thick.
Also available in a "tactical" version.
Category: Tools
The author marked this model as their own original creation. Imported from Thingiverse.