This style of knife is believed to have been used by Soviets. It used a compressed spring to launch the knife from the body (top) when a firing button was depressed.

    • FireTower@lemmy.worldOPM
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      1 year ago

      From my little research it seems like there was a Soviet guy who wrote a book where someone used one then they were kinda popular for a short bit. Apparently they even got fully banned federally in the US which is weird, because pipe bombs aren’t even fully banned.