There is a problem with the spring. The Mini's bolt return is 100% mechanical and had next to nothing to do with the eyes, orings, or parts in the grip
Check to make sure the spring is "clicked" on to the proper side of the bolt. Also make sure you are using the stock spring.
Originally Posted by Christian P
Does the celanoid click?
Is there a build up of paint on the eyes, frame, or in the grips?
Do a total tear down, clean, then rebuild of the bolt, parts in the grip, and clean the eyes. That usually gets my mini shooting again.
What does any of that have to do with the bolt not returning? If you don't know what you're talking about then don't post. You're just going to make it harder for him to figure out the problem.