Nerf blasters typically fire small foam darts or little foam balls. [Michael Pick] wanted to build something altogether more devastating. To that end, he created a rocket launcher with an advanced … ...

Nerf unveiled the Rival lineup back in 2015 when it introduced its new form of ammo. Instead of foam darts, the Rival blasters shoot small foam balls with golf-ball style dimples on the outer surface.

Small foam balls – tennis ball-sized green ones and yellow ones the size of ping-pong balls – are used instead. ... “The little yellow balls they still make,” he said.