Well I fixed the broken locking block pin in my brand new, never been fired 590a1 and am having another issue. The shotgun has not yet been fired. I disassembled it this morning to clean and oil the shotgun. After reassembly, I racked the slide a bunch of times. When I rack the slide rearward forcefully, it will stick back and I have to push forward pretty hard to get it to slide forward. Any thoughts what the issue is? Do I just have to rack the snot out of it to loosen it up? Or shoot it a bunch to break the gun in? I'm starting to have second thoughts about buying this headache of a shotgun? Thanks for your thoughts and comments.