Danny picks up a NERF Rival Prometheus blaster, and upgrades it with a custom magazine\hopper to hold a TWO THOUSAND soft plastic NERF balls aka Nerf Rival Balls. A World Record? Watch as Danny builds the new magazine from scratch and afterwards gets his brother Tommy to test this massive nerf blaster! We call it KING PROMETHEUS! Is this now the Greatest Nerf Blaster ever?! Let us know below! And enjoy!

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