Joerg Sprave may be a frighteningly enthusiastic weapons nut, complete with a signature demented laugh, but you gotta give him credit for design ingenuity. His fully automatic Gatling-style slingshot mini-gun is as inspired as it is dangerous. This eight-barreled, amazingly accurate merchant of death is powered by a Black and Decker power screwdriver and fires commercial pistol crossbow bolts. Ever generous with his inventions, he's posted the instructions on how to make your own automatic slingshot mini-gun in the YouTube notes, which we'd appreciate if you built inside a high-walled weapons range, thank you.
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