FlexVolt MXX-1200 Charger battery mod. 20v to 9V 3A Buck converter to adapt the FlexVolt battery sled as a 9v power supply to the blaster. Both of which are both mounted in
NERF Rival Charger MXX-1200 Motorized Blaster - 12-Round Capacity, 100 FPS Velocity - Includes 24 Official Rival Rounds - Team Blue : Everything Else - Amazon.com