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ribbed barrel

  1. Colt Mk III with ribbed barrel

    Colt Revolvers
    I picked up a 357 Mk III 6" in satin Nickel with a ribbed barrel. I had never seen a MK III with a ribbed barrel before. Serial number dates it as 1980. Anyone have any idea how many were made or what they are worth? i could not find one on gunbroker or gunsamerica.
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