Abstract: An electro-pneumatically operated kit assembly is provided for connection to a paint ball gun body, the kit assembly having a trigger initiating a programmed electrical control unit which actuates a first solenoid valve to move a hammer to open an air distribution path to allow pressurized air into the barrel to fire a paint ball sitting within the barrel of the gun body. The first solenoid valve then closes and a second solenoid valve opens to move a bolt away from the path of projectile storage path to release the next single paint ball into the barrel to await another trigger actuation. The first solenoid valve controls the movement of the hammer while the second solenoid valve controls the movement of the bolt so that the hammer and bolt move independently from each other.