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(VIDEO) Watch a fully-automatic DIY crossbow in action

Joerg Sprave demonstrates his fully-automatic homemade crossbow. (The Slingshot Channel/YouTube)
July 05, 2018

Joerg Sprave, a DIY weapons engineer and slingshot genius, has had some pretty amazing projects throughout the years – a rifled slingshot that shoots knives, an air-powered bazooka, a slingshot with an internal magazine, and a Gatling gun, to name but a few.

He has nearly 2 million subscribers on his YouTube channel, called The Slingshot Channel.

One of his latest homemade devices is a fully-automatic slingshot crossbow.

Sprave explains in his video how a unique but simple gearing mechanism, the rack and pinion, spins the drill and cocks the crossbow.

Sprave had been working on the project for a while now.

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In the intro for his video, he demonstrates a handy repeating pump action magazine-fed crossbow, followed by the burning question: “You know what’s missing? Full auto.”

Watch the video demonstration here:

While the video was posted by Sprave in January 2017 and garnered more than 3.3 million views on YouTube, a Facebook page called the Gaming Bible in June of this year posted the video again, and it has more than 18.1 million views.

The crossbow creation is a drill-operated, rubber-powered crossbow that flings arrow after arrow for as long as you hold the trigger, until it runs out of ammo.