Never had my gun apart, so I thought I'd take it down while cleaning it today. Removed the pin and tried to move the slide forward. When I did the thing locked up solid. I can't budge it. Looked down in the pin hole and there's a silver piece of metal that's moved half way across the hole. The pin won't go all the way back in. Something obviously shifted that wasn't supposed to. I guess I'll have to send it back to Kel-Tec cause like I said I can't budge the slide a mm either way. Don't know what else to do. Any thoughts?