PolarStar F2™ HPA Conversion Kit
Winner of "Best HPA Engine" in the 9th Airsoft Players' Choice Awards, the F2™ delivers the same legendary dual solenoid performance as the Fusion Engine™ in a more compact, efficient, and flexible package. Independently adjustable nozzle and poppet valve give you unparalleled control over loading time and air volume — plus the ability to switch between true closed bolt and "AEG" firing modes. PolarStar Filter Fitting included.
The F2™ features a new one-piece lightweight poppet valve that operates at lower pressures and uses less air volume than the Fusion Engine™ poppet, optimizing efficiency. Its spring-biased forward nozzle provides consistent loading force regardless of operating pressure.
Gel Ball Compatible
F2 kits can be configured for gel ball systems. Contact us for details.
Performance
- Velocity: Up to 480fps w/ .20g @ 145psi — full range (below 280fps to 480fps) achievable with a single nozzle just by adjusting pressure
- ROF: 30rps in most standard configurations
- Air Efficiency: 1000+ shots from 13/3000 @ 1.5J w/ .28g
- Operating Pressure: 45–145psi
Parts and accessories ship within 7 business days. Custom HPA rifle builds take up to 45 business days (often less). Need it sooner? Contact us to check current stock.
All sales on parts and accessories are final once shipped. Defective or damaged items are covered under the KA Tech Warranty.