Handled airbrush cleaning holder

OK so these aren't really an airbrush, more of a miniature spraygun, And I'm no artist, I just want a clean finish to my models. Lots of these online and they all look to be similar so I hope yours fits (no good mentioning a manufacturer as they seem to be generic)
This is an adapter for a 60mm food jar with 4 threads to the lid (4 lugs pressed into the tin lid). It's in two parts to minimise supports. I was shocked to find my first attempt to design and print the thread worked, does seem quite weak so I have included a stronger version.