SKU: 97601428979

F2™ HPA Conversion Kit

Sale price$190.35 Regular price$211.50
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

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Description

F2™ HPA Conversion KitBite Sized Fusion Engine 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

 

Bite Sized Fusion Engine

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)

 

**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.**

 

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: 97601428979

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4.8 ★★★★★
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nicole
Bozeman, US
★★★★★ 5
Excellent customer service and quality
Size: Super King, Size: Super King
Update: since my original review the company has reached out to me and apologized for the quality of the comforter i received. They replaced the comforter with a brand new one and didn't make me send back the old one either! This new one is great quality so i am very pleased. The comforter is super comfy and not too hot or too cold. It has some weight to it which i love because it makes it so much more cozy without making me too hot. I got the super king size and I love how big it is. My husband and i don't fight over the covers anymore. With this new comforter and the way they handled things i give this company and product 5 stars and would highly recommend this to anyone! Well, I just opened this comforter and already im finding issues. There are strings coming out and at least 2 stains I've found so far. Not sure if I should return this or what as I'm sure it would be really hard to fit this back into the case. Wish this was a better experience. This was very expensive too, so very disappointing.
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Reviewed in the United States on May 20, 2026
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Verified Purchase
Drew
Charlottesville, US
★★★★★ 5
Love this comforter.
Size: Queen
Super comfortable and light and well worth the price. Excellent quality that I didn't think I'd find again. And without the dreaded returns of trying something and it not right. It feels like the same one I bought in 2007 at BB&B on Christmas Day for half off and that was $250. So normally a $500 comforter and as a matter of fact I still have it although the feathers are kind of falling out. I'll probably just need to take it to a seamstress and have her resell a few things but I'm still keeping that as I am going to keep this. Incredible feel and very warm for an L2. The design is great. I haven't washed it yet but on order to fluff it I basically put it in the dryer for an hour on delicates with no heat. It did come sealed in a small box but it was absolutely perfect after an hour on fluff with no heat. I will end up buying another one when I get a king size bed. All I need now is a duvet that feels just like this comforter. There was no scent as some people mentioned. It smelled fresh right out of the box.
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Reviewed in the United States on March 20, 2025
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Verified Purchase
Kalisha
Lowell, US
★★★★★ 5
Update: replacement comforter is much better… really impressed with this small business
Size: Palatial King
Update: The comforter on my bed is now everything I hoped for: fluffy, warm, and wonderfully cozy. Getting here was a two-part story, and it’s the happy ending and the fantastic service that created it that I really want to share. I’ll be honest, my first comforter was a letdown. It arrived flat and thin and just never really… fluffed into the cozy cloud I was hoping for. I was pretty frustrated, which is why I left my original review. But then, something really nice happened. The company actually reached out to me directly. They were so kind, listened without getting defensive, and genuinely wanted to make it right. They sent a replacement, no questions asked, and the difference has been night and day. This new one is exactly what I’d imagined. It has a real, fluffy loft, it’s softer, and after letting it settle, it’s become the full, warm, and comfortable comforter I wanted from the start. My quick takeaways: · A small business that stands behind their work. This meant a lot. · Customer service was top-notch kind, FAST, and professional. · The replacement is clearly better quality: fuller, softer, and warmer. · It’s a completely different (and better) experience than the first. I really value when a company just focuses on fixing things. The way they handled this completely changed my perspective. While the first one missed the mark, their response and the quality of the replacement have made me a happy customer. I’m glad I gave them the chance to make it right, and I’m finally cozy under the comforter I was hoping for.
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Reviewed in the United States on January 10, 2026
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Clyde D Triplett
Boise, US
★★★★★ 5
Very Nice Comforter
Size: King
So far, very happy with my purchase, (King size comforter). Just received yesterday, unpackaged and put inside my duvet, then realized the instructions recommend you place it in the dryer, (as it comes vacuum packed). I really didn’t feel like messing with the duvet again and yet the comforter still fluffed out very nice. The outer shell is very soft, it has decorative piping around the edges and the filling is evenly spread out throughout all the pockets. One of the nicest features are the tabs, located on all four corners and in the middle of each side, (to tie to the inside of your duvet, if your duvet has the little inner strings) great for keeping the comforter in place.
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Reviewed in the United States on May 24, 2026
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Verified Purchase
Emily K. O'Neill
Cuba, US
★★★★★ 4
Just one con…
Size: Palatial King
Loved everything about this duvet: great quality, true-to-size, 8 ties and REALLY big & fluffy. It was just way too warm for us, even during the winter. Wish we could find a duvet this full that was cooler.
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Reviewed in the United States on April 6, 2026

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