PolarStar Fire Control Unit — Rev 3
The Polarstar FCU is the electronic controller at the heart of all Polarstar HPA systems — the unit that converts your trigger pull into a precisely timed solenoid signal, controls your firing modes, and determines the feel and responsiveness of every shot. The Rev 3 is the most refined version to date, incorporating Polarstar’s accumulated experience from the F2, JACK, and FUSION platforms into the most capable standalone FCU they have produced.
What the Rev 3 Improves
- More refined trigger response — shorter felt trigger travel, faster solenoid response time
- Expanded programmability — additional dwell, ROF, and mode settings versus earlier revisions
- Improved reliability — component refinements informed by field experience across multiple Polarstar platform generations
- Backwards compatibility — Rev 3 is designed to work with existing Polarstar system installations where FCU replacement is needed
As a Standalone Component
The FCU is available standalone for players who need to replace an existing unit, upgrade from an earlier revision, or build a Polarstar system from individual components. Genuine Polarstar component — the same FCU supplied in their complete engine kits.
Compatible with Polarstar HPA systems. Confirm specific compatibility with your platform. External HPA rig required. 18+.





