Great snag. I was the guy asking you about it after you bought it. I saw no stake marks and nice wood. Looked correct without tearing it down. Someone must have broke the firing pin thus the replacement. That was the nicest carbine there. I was gonna buy it after I sold some stuff I brought. First vet bringback I ever saw and the price was right. LOL Great catch. Wonder if any will turn up at SOS in Louisville?
Michael