This end piece clips very easily on Makita saw tracks.
The bumpers can be clipped on one another for storage.
Print instructions:
PLA 0.3 mm layer height.
Faced down.
No supports.
Update 20240227:
Added a no logo version (v13)
There's a Festool saw track bumper too:
https://www.printables.com/model/332954-festool-track-saw-guide-rail-protection
The author marked this model as their own original creation.