The twenty-five dart drum is a Nerf dart drum. One comes packaged with either the Rampage, Hyperfire, or a special value pack version of the Zombie Strike Slingfire (exclusive to Kohl's in the United States and to Galeria Kaufhof department stores in Germany) Two come packaged with the Rhino-Fire and four come packaged with its "Double Your Darts" variant. It cannot be purchased separately in stores.