PolarStar HPA JACK/F1 Airsoft Version 2 GEN 3 M4 Switch Board

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Are you having issues with your original M4 switch? It might be time to replace it with a well-made product, like a version 2 Gen 3 switchboard.
This model is compatible with a wide variety of version 2 Jack and F1 cylinders. You can use it with V2 gearboxes to upgrade your M4 or M16.
The manufacturer recommends placing the switchboard onto a PolarStar fusion engine with AEG selector plates. Professional installation might be necessary.


  • Works with Version 2 Jack and F1 Cylinders
  • Compatible with M4 and M16 Platforms
  • Color: Green
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