This high RoF spring allows the Neutron solenoid to reach its maximum performance and is only required for the highest rate of fire builds. This spring is not needed for the Neutron Solenoid in most builds, but if you are really looking to push the limits in your blaster this upgrade will help to reset the solenoid faster.
FEATURES: • Up to 40 darts/sec • higher strength for faster reset • Designed by Eli Wu
