I designed this to fit the new XShot Fury blaster. It uses M4x8mm machine screws and M4 Washers (instead of bearings).
It seems to work really well and only loses about 5 fps.
Let me know how you get on as I am the only one who has tested it so far.
For info my washers are 0.8mm thick and 8.7mm wide.
It also fits the Xshot Longshot and the Nexus Pro X
The author marked this model as their own original creation.