WORLD'S LARGEST NERF GUN Destroying Watermelons!!

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We built the world's largest Nerf Gun with Mark Rober and obliterated some watermelons with it! We also compared the black powder cannon to the existing pneumatic air system.

Check out Mark's channel to see this thing shoot oversized darts!
https://www.youtube.com/watch?v=57MKxz4pJKE

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Music:
3:29- Loupe - Andrew Applepie- http://www.andrewapplepie.com/

Видео WORLD'S LARGEST NERF GUN Destroying Watermelons!! канала Ryan & David