Hello, I have an H&R 22 Special Topbreak that needs some parts and can't find a schematics for it. Any suggestions on where I can find one. And also, where can I find parts? I need the, don't know the exact name for it, pivoting 'catch' that pushes the ejector when you 'break' the gun open, and probably the pivot screw. ( it slips off the catch when it opens up past half way). Anyone's help on this is VERY welcome.