Polarstar F2 HPA Engine Conversion Kit / Custom Anodized in your colors
SKU: 54509737203

Polarstar F2 HPA Engine Conversion Kit / Custom Anodized in your colors

Sale price$239.40 Regular price$266.00
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Polarstar F2 HPA Engine Conversion Kit / Custom Anodized in your colorsDo not order this item until we Ok your anodizing colors How this item works: This Item is for a new F2 anodizing in colors you want. Not the one in picture you see. This is a made to order item. We do not anodize the nozzle 1st Look at our Instagram or facebook pictures for color ideas Name is "Pooty_Anodizing_and_Customs Avoiding anything platted Platted is 24k Gold, Chrome or Aurora. We no longer offer platting. Just anodizing. 2nd Email

---- Do not order this item until we Ok your anodizing colors ----

 

How this item works:

This Item is for a new F2 anodizing in colors you want. Not the one in picture you see. This is a made to order item. We do not anodize the nozzle 

1st 

Look at our Instagram or facebook pictures for color ideas - Name is "Pooty_Anodizing_and_Customs

Avoiding anything platted - Platted is 24k Gold, Chrome or Aurora. We no longer offer platting. Just anodizing.

2nd

Email [email protected] your location and a picture from our Instagram or facebook pictures. Note any color edits you want done.

3rd

Once we work out and go over your coloring choice, we will Ok you to order this item. This is to make sure we can do what you need. Please be advised that all custom anno work is done by hand. Nothing is a print. You will always get your own custom. Never a direct copy. We can use a simple solid logo you have if you send in a PNG or SVG file. If your logo is too complex we will let you know if it cant be used in your coloring.

 


**All kits come with a Filter Fitting installed, FCU, Switchboard, Wire Harness and any additional components needed to convert the specific airsoft rifle model for which the kit is configured. The HPA Tank, Air Rig (regulator and line) and Battery needed to operate the system are purchased separately.**

 

Winner of the "Best HPA Engine" in the 9th Airsoft Players Choice Awards, 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. (PolarStar Filter Fitting now included)

 

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.

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

Additionally, its 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.

Gel Ball Compatible

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

Please contact us for information on ordering F2 systems for gel ball use.

 

Velocity: 480fps w/ .20g @ 145psi
The F2™ allows for easy velocity adjustment just by changing input pressure and does not require different nozzles to reach its full velocity range. Using a standard M4 as an example, velocity can be adjusted from below 280fps and up to approximately 480fps with a .20g BB. Velocity can vary per model as longer barrels will increase the maximum velocity while shorter barrels will decrease it. 
ROF: 30rps
The maximum cyclic rate of the F2™ is affected by several factors such as the operating pressure as well as quality of the magazine and BB's used. However, 30 rounds per second is achievable in most standard configurations.
Air Efficiency: 1000+ shots from 13/3000 @ 1.5J  w/ .28g
The standard F2™ poppet valve is equivalent to the Red Low-Flow poppet of the Fusion Engine™. 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 Poppet / 6.05x375mm Barrel)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 54509737203

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Gina D
Carnegie, US
★★★★★ 5
Great pants! True to size
Size: Large, Color: 1 White
Great pants! Hubby loved them. Super comfortable too
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Reviewed in the United States on May 9, 2026
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Jacob Legere
Phoenix, US
★★★★★ 4
Good fit, very see through
Size: Small, Color: 2 Beige
They fit and look great, but be warned!! They are very see through, make sure you’ve got some light colored underwear!
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Reviewed in the United States on April 5, 2026
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vaughnv
Lexington, US
★★★★★ 5
100% cotton, but still easy care
Size: Large, Color: Khaki 2
I bought 5 of these pants and I am glad that I did. The elastic waists are easy pull up and down (especially for the mobility handicapped like me). They wash and dry nicely - I don't bother ironing them. They are nice, light summer pants (good year round in FL).
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Reviewed in the United States on March 2, 2026
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Daniel
Alexandria, US
★★★★★ 3
Sizing is off.
Size: Small, Color: 3 Black
Much shorter than expected. Poor fit in the legs as well, at least for me. I’d say they are a couple inches shorter than the size chart. I expected them to be short, but not waiting for a flood. Material was nice but overall not a good fit for me.
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Reviewed in the United States on May 27, 2026
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Rosie
Grantham, US
★★★★★ 5
Sensory Friendly
Size: X-Large, Color: Medium Grey
Sensory friendly. My son and I are both Autistic and finding comfortable clothing is challenging... Sweats and tshirts are our go to. These pants are an upgrade to our wardrobe- very comfortable and great for lounging at home or dressing them up with a nice shirt to go out for the day. I bought these for my son to try and he loved them! They were a little too tight, (winter weight) so I ordered two more in a bigger size. I however kept these because I love them too. The fabric is a nice and breathable with a slight give. I wore them outside yesterday in the hot AZ heat and I was comfortable and in the evening it cooled down with a rainstorm and I was happy I had these pants on. The pockets are amazing! Don’t get me started on pocket size vs phone size. My iPhone sits way deep in the front pocket and hits about thigh level… my iPhone isn’t going to fall out and that’s good peace of mind knowing my investment is safe. Overall my son and I are very happy with our new pants.
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Reviewed in the United States on June 2, 2025

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