The nose cap went missing years ago and bugged the hell out of me ever since. I'm surprised I waited this long to come up with something.
The model is a combination of the following 2 models along with an added ring for the bottom to not leave a gap.
https://www.thingiverse.com/thing:3579587
https://www.thingiverse.com/thing:4078497/files
The author marked this model as their own original creation.