Help reassembling a CZ 452

[Djfan]

Just doing a basic cleaning on the Mrs's 22. Took the bolt out no problem. It won't go back in. No ideas why. After an hour, Watching every YouTube I can find, it won't go back in. Anyone have the trick?

 

[p_ham]

Is the bolt cocked? Trigger pulled all the way? Tried giving it a bit of a jiggle to help line everything up?

 

[Djfan]

Is the bolt cocked? Trigger pulled all the way? Tried giving it a bit of a jiggle to help line everything up?

Tried that all.

The solution was that when I screwed the magazine receiver back in, I put the screws in a kiss too far, blocking the bolt. Backed them off a hair, and the bolt went right in.