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Reproduction or USGI

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2 comments

  • BBCollections

    This is a Type 1 M1 Carbine rear sight. Should of specified. Sorry.

    3
  • thorhammer

    The S on the left side is correct, just shows the sight needs to be inserted on the right side, so the S is facing the left side. All Type I flip sights made during WWII had an S on the left side, so your sight is a bono-fide correct sight. It's the FO B mark, and it was made by IBM, so you have a correct WWII sight

    9

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