Blast into Nerf Rival competitions with this compact powerhouse to knock out the competition The Knockout XX 100 blaster packs high intensity Nerf Rival power in a small size. Fire off rounds at 85 feet per second from this spring action, single shot blaster thats great for games that move fast and keep you on the run. Playing in a small area The breech load Knockout XX 100 is ideal for close spaces and stealth attacks. It has built in round storage and comes with 2 Official Nerf Rival Rounds. Trigger lock prevents it from firing accidently. Load 1 round, prime, and pull the trigger to fire. Team Blue version. Hand powered no batteries required.