Dave, these pins can get worn out over time.
If the pin was frequently fallen out of the receiver when it's apart from the frame, down to the former owners furry carpet, he may have slamed his fist on the table an replaced it with a 'tighter' one.
As to non-matching, I agree with Ron and Bill. ..even if the pin was pink with green dot's, it would not place the Luger into shooter's category based only on that.
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Previously known as Morgan Kane
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