Minox 35ML & GL 30mm filter adapter. This adapter replaces my old adapter: https://www.printables.com/model/173716-30-mm-filter_screw-to-push-on-adapter-for-minox-35
IMO, this one has a much better fit and also shows the distance scale.
Use fuzzy skin for a nicer look, see gcode files.
The author marked this model as their own original creation.