Be Prepared for anything with survival kits to defend against any zombie attack! The nailbiter: zoom & doom kit is part of the zombie strike survival system and includes the nailbiter toy blaster, zoom & doom accessory set, and 16 official Nerf zombie strike elite darts. The Nerf zombie strike nailbiter blaster has a vertical indexing 8-dart clip that stays attached to the blaster and automatically index to the next dart for fast firing with no priming. Attach the zoom & doom stock to the nailbiter blaster to steady your shots; the stock has swing-out storage for easy access to back-up darts. Attach the zoom & doom barrel extension to the blaster and twist it to adjust the length as you line up your shot. This kit is designed with fun details that reflect the zombie strike story of survivors who are creating battle gear with parts they scrounge from different places. Other survival system kits each sold separately. Nerf and all related properties are trademarks of Hasbro.