Hasbro Nerf Reactor The Reactor launcher blasts out Nerf Ballistic Balls everywhere you take aim! The awesome pump-and-pull action keeps the fun fast and furious! Just load the balls into the see-through barrel, take hold of the comfortable hand-grip, and start blasting! It's awesome, load-and-launch action you can only get from Nerf! Launcher includes 4 Ballistic Balls