Nerf Modder’s 70 MPH Rival Blaster With 2,000 Rounds

The Nerf Rival blasters can fire foam balls at up to 70 miles per hour. Pretty awesome right out of the box. Impressive, but not enough for YouTube’s Captain Xavier, who modded his Nerf Rival with a spinning feeder and a 2,000-shot backpack. If you do the math, that is…