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Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal construction

SKU 47870728615
4.7
Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal construction
Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal construction
Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal construction
Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal construction
Description

Metal construction

2021 update:  Will fit the Valken 11

Quick Focus Eyepiece

steel gears

Polarstar JACK - HPA Standard FCU Conversion Kit Spring Shotguns Metal constructionThe Polarstar JACK HPA Standard FCU Conversion Kit. This is the full sized FCU version for easy programming. Contains everything you need internally. Works drop in with most M4 AK platforms. G&G, Elite Force, JG, and most are pretty easy to install. Watch some Youtube videos on how to put it in yourself. With the Polarstar JACK engine, all you need to complete your HPA setup is: HPA Air Tank (non SLP tan regulator is okay, Ninja, Valken, FS is good)

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

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