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Thread: 1941 byf sn 1733 a

  1. #1
    Join Date
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    Default 1941 byf sn 1733 a

    Possible opportunity to acquire BYF 1941 serial number 1733 a. E135 on top of the barrel as well on the right side of frame. Brown matching grips.

    My question is this marking rare on the top of the barrel or fairly common in 41's. My other does not have this but it is in the z block. Suppose Im asking does anyone know which block this ended?

  2. #2
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  3. #3
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    135 proofs is not really rare on a byf 41 but less common. Correct for a block. 135 started in the ns block. The 655 proofs are correct for z block.
    Mike Z.

  4. #4
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    Thanks.

  5. #5
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    i had all matching byf 41 #7648NS with a 655 barrel and both 135 acceptance on receiver.

  6. #6
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    Oct 2009
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    Interesting,
    I would think while changing from 655 to 135 period that would be very possible due to parts already inspected. I need to check mine today and look at the barrel proof.
    Mike Z.

  7. #7
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    Location
    Southern PA
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    I would think while changing from 655 to 135 period that would be very possible due to parts already inspected.
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    Mike, i agree wholeheartedly. I believe that's why so many byf 41 receivers are mixed in with byf 42 production Adriaan

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