Aug 12, 2019 · 5. Rival Phantom Helios MiniGun. Many new Rival Nerf Guns seem to go one step further with their design and this one is no different. Offering seven rounds with high-velocity impact (around 100 feet a second!) this one is sure to make games and playtime really fun. The magazine has an easy-load design so kids can easily load up their darts for .... "/>