Hello all, looking for some parts, I recently purchased a 520 12gauge pump and have been trying to get it back into service, it has the early style safety in the trigger guard. Any input appreciated. Upon initial firing, the slide lock release wasn't working. I have found that the release spring was balled up by someone previously and have a new one on the way. However, the action bar is worn to the point that it unlocks itself at random and leaves the bolt in the rear position. I am on the hunt for a new action bar or specs to make one. Thank you guys again in advance.

Numrich, Ebay, etc...

Yep, that's pretty much what I'd say too.