3oz Grease Tube Attachment

I like using these 3oz grease tubes for various stuff..but not always with the grease gun. This allows me to use the grease tube fully, without having to cut the lip to get the lower grease out. 

Prints out in 4 parts, I did in PLA as it was loaded, but the Plunger was printed in TPU. I think it would work with pla, but it would be a tight squeeeeeze.

I'd use some supports on the threads, although not required.