PolarStar JACK HPA Conversion Kit – V3 (AK)
£337.50
Polarstar JACK HPA conversion kit for V3 / AK-platform AEGs — Polarstar’s FCU-integrated HPA engine in the AK mechbox format. Consistent FPS, programmable performance, and the full Polarstar quality for your AK build.
PolarStar JACK HPA Conversion Kit — V3 (AK)
The Polarstar JACK for V3 brings Polarstar’s FCU-integrated HPA conversion to the AK platform. The V3 mechbox is the heart of most AK-pattern airsoft rifles, and the JACK converts it completely — replacing the battery-and-motor system with a full HPA engine that delivers Polarstar’s benchmark consistency and electronic programmability.
JACK V3 Features
- V3 mechbox compatibility — fits AK-platform airsoft rifles using the Version 3 gearbox
- Integrated FCU — full electronic fire control, semi/full auto/burst programmable
- Class-leading FPS consistency — Polarstar’s solenoid-based system holds an exceptionally tight shot-to-shot window
- No battery required — HPA powered throughout
- Compact design — the JACK fits cleanly within the V3 receiver space
AK + HPA — A Natural Upgrade Path
The AK platform has always been well-regarded in airsoft for its aesthetics and robustness. With the JACK conversion, the mechanical internals are replaced with HPA precision, maintaining everything you love about the platform’s external experience while dramatically improving consistency and performance. For AK players who are ready to move to HPA, the JACK V3 is the most capable way to do it.
External HPA rig required. V3 / AK-platform AEGs only. Professional installation recommended. 18+.
Related products
