Former toy designer, electrical and mechanical engineer, and YouTuber James Bruton came up with the idea for a NERF volley blaster after lamenting the lack of multi-shot blasters on the market. His design is built from 3D printed parts, and rather than launch the darts via air pressure, they feed from 10-round ‘magazines’ into a motorized roller system which plucks them out of the mag and launches them forward. It’s large and unwieldy, but as far as a proof-of-concept goes, it’s pretty neat.