I think it's a repro. In searching for a genuine firing pin, I discovered a website that had a lot of Mauser parts. After researching, found out he's only about 10 miles from me so I'm going over to his place (he loves Mausers) & I think he can help me resolve it. Real lucky. I appreciate all your help--will let you know how it turns out. I love the gun & think I'll love it even more when it actually shoots.