Guys I just picked up an M1icon that I won on GB. It's in better shape then I thought it was for an SA in the 1.1 million range. The barrel seems to have been changed but the only markings I can find on the barrel are 1-SA-1-4. I have never seen markings like this before. There is a punch mark and a P a bit further up the barrel. Does anyone have an idea what it is?
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