Polarstar F2 V2 HPA Airsoft Engine for M4 M16 Rifles

The Polarstar F2 HPA Engine redefines versatility for airsoft enthusiasts seeking precision and adaptability in their V2/M4 M16 rifles. Designed as a compact powerhouse, this engine combines the legendary adjustability of the Fusion Engine with a streamlined profile ideal for lightweight builds. Its patented dual-solenoid system allows independent control of nozzle and poppet valve settings, enabling unmatched customization of loading times and air volume—perfect for switching between rapid CQB engagements or long-range DMR setups without swapping nozzles.

A spring-loaded nozzle ensures consistent pellet loading force across pressures from 45 to 145 psi, delivering stable performance whether you’re skirmishing indoors or on open fields. The lightweight aluminum alloy poppet valve operates efficiently at lower pressures, reducing air consumption while maintaining velocities between 205 fps and 500 fps. The intuitive F2 FCU with LCD display simplifies tuning, letting you dial in FPS adjustments effortlessly for any scenario.

Built for durability and flexibility, this HPA engine fits seamlessly into most V2 gearboxes as a direct upgrade. Whether you’re a competitive player prioritizing precision or a casual shooter looking for reliable performance, the F2’s compact design (4 inches long) and broad pressure range make it an upgrade that adapts to your style—without sacrificing power or consistency. Say goodbye to bulky setups; this engine blends cutting-edge technology with user-friendly operation for airsoft rifles that demand both agility and punch.