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Unread 02-18-2021, 10:10 PM   #16
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B. Dudley
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Quote:
Originally Posted by Andrew Sacco View Post
All I have to say is holy crap never knew that
Yeah. When looking at the bottom. Left screw is blank. Right screw has a “-“ and the back screw has a “+”. Except earlier guns (up to maybe 1920-ish) have a long back screw, so not mark is needed.
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