Build a blaster for every mission with the Nerf Modulus Regulator Blaster! With SwitchFire Technology, choose 1 of 3 firing modes; flip the switch to choose single fire to fire 1 dart per trigger pull; select burst fire to blast several darts per trigger pull; and switch to continuous fire to continuously fire the darts. Power up the motor by holding down the acceleration button, and then let the darts fly! Customise the blaster with the swivel handle to stabilise shots and the 2 barrel scopes that can be used as barrel extensions or targeting scopes. Expand your customising options with other Nerf Modulus Upgrade Kits (each sold separately). With the full Nerf Modulus system, over 1000 different combinations are possible! Requires 4 x C batteries (not included).