We've all used a NERF gun at some point in our lives, but nobody has ever used a 4 foot long, paintball-tank powered, glass-shattering NERF gun before. Well, until now. 

Youtuber Mark Rober was apparently in frequent NERF wars with his coworkers, and decided to do something that would give him an edge. Like, a huge edge. So he contacted some of his engineering friends who helped design this BEAST of a NERF gun:

It's fully functional, uses plungers attached to pool noodles for darts, and can shoot up to 40mph.

Yeah, probably won't see Hasbro throwing these out on shelves any time soon. But in the meantime, enjoy the video of these guy's creation, and stay far, far away from them. Or at least 130 yards.