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