The X-Shot MPP is an almost perfect blaster. But it definitely lacks a slingmount option. I didn't find any files online, so I simply created one myself.
You can just add it to the blaster by putting it onto the buffertube and fasten the locknut behind it.
Print with the flat side down. I printed it in PLA+ with 20% infill and 3 walls, which seems pretty good already, but if you want to be super safe, then print it with 100% infill in PETG or ABS.
The single sided slingmount can be mounted either left or right side. If you want to switch it to the other side, you can just loosen the stock and turn the plate 180°, then tighten everything back up.
The author marked this model as their own original creation.