Polarstar F2 V3 Conversion Kit (AK)

(1 customer review)


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The PolarStar F2 V3 Conversion kit for V3 AK rifles allows you to transform your existing AEG into a high performance HPA powered rifle. The F2V3 Conversion kit comes with an F2V3 Switchboard #2 nozzle which supports most AK models from G&G, Tokyo Marui, CYMA, and other clones.

Velocity Range: 250fps – 500fps

Operating Presure: 45-145 PSI

Compatibility: ALL AEG

Patented Dual Solenoid Design

The dual solenoid design of the F2™ provides the same functionality as the legendary Fusion Engine™ but in a more compact, efficient and flexible design. Dual solenoids allow for the nozzle and the poppet valve to be adjusted independently of each other for unparalleled control over both the loading time and air volume used. Additionally, this makes it possible to change the firing sequence giving it the ability to operate in both true closed bolt as well as “AEG” mode.

Increased Efficiency

The F2™ incorporates a new one-piece, lightweight poppet valve design yet still operates on the same principle as the Fusion Engine™ poppet. This valve is able to operate at lower pressures and uses less air volume to function which optimizes air efficiency.

The standard F2 poppet is equivilent to the Red Low-Flow poppet of the Fusion Engine.

Spring Loaded Nozzle

The F2™ nozzle is spring biased forward which provides a consistent loading force regardless of operating pressure. It shares the same spring as the Fusion Engine™ with both light and heavy spring options available to adjust the loading force.

The robust design of the F2™ allows for an operating pressure range of 45psi to 145psi which enables it to achieve velocities from CQB to DMR while employing only one nozzle for the entire velocity adjustment range.

Offset Nozzles

F2 is compatible with virtually every AEG gearbox, including those with offset nozzles by using either a centerline or offset front cylinder. The front cylinders are interchangable and a centerline F2 may be converted to an offset F2 by simply swapping the front cylinder and nozzle.


NOTE – No battery or HPA gun side connector sold with F2, will need to be purchased also if required

Kit Contains:

  • F2 Engine (AK Nozzle)
  • Standard FCU Board
  • Data Cable
  • V3 Trigger board

1 review for Polarstar F2 V3 Conversion Kit (AK)

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  1. Richard (verified owner)

    Very nicely made peice of kit.

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