I have an old Stevens 54A .410 Bolt-action shotgun. It needs a pin in the striker tail ( I guess a roll pin) and the bolt is kind of hard to close unless you work the bolt vigorously. When you do that, the striker follows more than half the time.
Anyone know what I'd need to get to fix this? Where can I get parts for it?

Thanks!

take it to a good gunstore, and have it torndown and cleaned, pins replaced as needed.

The gun is pretty darn clean. Dad kept it well and I maintain it even though it isn't in firing condition.

not saying you haven't cleaned it ... the bolt is probably full of crap, or the trigger