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Old 09-07-2021, 05:11 AM
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JP@AK JP@AK is offline
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Location: Palmer, Alaska
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Originally Posted by handejector View Post
There are some M&Ps with just an S prefix that have plugged swivel holes.
Yes. Probably in the neighborhood of 9,000 of them. The highest numbered one that I've found is S820803. It shipped in April, 1946.
SWCA #2475, SWHF #318
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