PolarStar Airsoft HPA F1 Version 2 Conversion Kit, G&G SR25 Cylinder

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Are you having difficulty controlling your BBs while taking down your enemies? PolarStar might have the perfect solution with this HPA F1 version 2 conversion kit. It comes with many admirable features to help you prevail on the battlefield.

The manufacturer didn’t settle for subpar materials. On the contrary, they made this product with aluminum alloy to deliver superior durability and a lightweight design. The item can take quite a beating and should support you in numerous skirmishes.

One of the main highlights of this conversion kit is the live-fire tuning system. Designed to increase your air efficiency, it can help you shoot your M4 more comfortably. Plus, the product stabilizes your rounds in the hop-up before firing and eliminates any spin that may lead the BB to change directions.

This conversion kit also features trigger response enhancements. It helps ensure each trigger pull fires a BB, which can make a world of difference in your airsoft sessions.

Customizing the product with aftermarket solutions should be simple. This is because it is compatible with various aftermarket items that can improve your performance. It’s especially suitable for enhancing your hop-up.

Installing and maintaining the conversions kit should be just as seamless. The item is compact and should fit your AEG like a charm. Accessing the components should be easy, too, allowing you to make crucial modifications.

Lastly, the model is equipped with FCU to meet field requirements and help you adjust critical settings. It can fire at a 2-9-round burst.


  • Aluminum Alloy for Exceptional Strength and Lightweight Design
  • Meets Field Requirements with FCU
  • Live Fire Tuning System
  • 2-9-round Burst
  • Stabilizing BB Spin
  • Solenoid Design
  • Compact and Efficient
  • Nozzle Type: M4
  • Compatible with G&G SR25 AEG
  • Color: Blue and Silver
  • Length: 4 Inches
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