*PolarStar Fire Control Unit (FCU) Rev. 2
- Compatible with both Generation 2 and Generation 3 Fusion Engines
- Control the Rate of Fire or Burst settings from this unit.
You can quickly change and adjust key functions of the engine via the on-board FCU (Fire Control Unit) which is no bigger than an AEGs MOSFET and can easily fit inside of a rifles battery compartment along with a small Li-po battery. Using the FCUs five position joystick and LCD display you will be able to easily adjust such functions as the systems cyclic rate, fire modes and nozzle timing on the fly.