F2 Polarstar

F2 Polarstar

Regular price€529,00
Tax included.

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  • In stock, ready to ship
  • Inventory on the way

Small Fusion Engine

Winner of "Best HPA engine" at the 9th Airsoft Players Choice Awards, the F2™'s dual solenoid design offers the same functionality as the legendary Fusion Engine™ but in a more compact, efficient and flexible design. Dual solenoids allow you to adjust the nozzle and poppet valve independently of each other for unmatched control over both loading time and air volume used. Furthermore, this makes it possible to change the firing sequence giving it the ability to operate in both closed bolt and "AEG" mode.

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

A rugged design allows for an operating pressure range of 45 psi to 145 psi allowing the F2™ to achieve speeds from CQB to DMR using a single nozzle across the entire speed adjustment range.

Additionally, its nozzle is pushed forward by a spring that provides a constant loading force regardless of operating pressure. Shares the same spring as the Fusion Engine™ with light and heavy spring options available to adjust loading force.

Gel Compatible Blaster

F2 HPA conversion kits can also be configured for use in gel blasters.

Please contact us to inquire about ordering F2 systems for use with gel blasters.

Velocity: 480 fps with 0.20 g at 145 psi
The F2™ allows for easy velocity adjustment by simply changing the pressure input and does not require different nozzles to reach the entire speed range. Using a standard M4 as an example, the velocity can be adjusted from less than 280 fps and up to around 480 fps with a 0.20 g BB. Velocity may vary by model as longer barrels will increase maximum velocity while shorter barrels will decrease it.
ROF: 30rps
The maximum cyclic rate of the F2™ is influenced by several factors such as the operating pressure, as well as the quality of the magazine and pellets used. However, in most standard configurations 30 shots per second can be achieved.
Aerial efficiency: over 1000 shots from 13/3000 at 1.5 J with 0.28 g
The standard F2™ poppet valve is equivalent to the Fusion Engine™ low-flow red poppet. However, this valve responds faster and requires less air volume to operate, so the F2™ is able to achieve greater air efficiency than even a finely tuned Fusion Engine™.
(Test configuration: red bolt/6.05x375 mm barrel)

Delivery times vary according to the region and the type of courier, usually from 4/5 working days. All our products are covered by warranty and customer support that will follow you in case of any need.


Our refund policy and return lasts 15 days. If 15 days have passed since your purchase, we cannot offer you a full refund or exchange. To be eligible for a return, your item must be unused and in the same condition you received it. It must also be in the original packaging. To complete the return, we require a receipt or proof of purchase. Please do not return your purchase to the manufacturer.


Once your return has been received and inspected, we will send you an email to let you know that we have received your returned item. We will also notify you when your refund has been approved or denied. If you are approved, your refund will be processed and a credit will automatically be applied to your credit card or original payment method, within a certain number of days.


If you have not yet received a refund, please check your bank account again. Then contact your credit card company, it may take some time for your refund to be officially posted. Then contact your bank. There is often some processing time before a refund is posted. If you have done all of this and still have not received your refund, please contact us at {email address}.


Only regular priced items can be refunded. Sale items cannot be refunded.


You will be responsible for paying your own shipping costs for returning your item. Shipping costs are not refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it takes for your exchanged product to reach you may vary. If you are returning more expensive items, you may want to consider using a trackable shipping service or purchasing shipping insurance. We do not guarantee that we will receive the returned item.

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