Dear GOD! My parents would never have trusted me with something like that! Then again I only remember NERF guns shooting balls when I was little (of course that may be because that's all my parents would buy me). Then again my parents didn't trust me with anything "dangerous" including power wheels because they thought I would have chased the cats and dogs.
But even now looking at that gun I can't help but wonder if it's possible to get extensions for the ammo belt. And if there's any way to attach an ammo can to the side to hold the ammo.