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  • PolarStar Jack

PolarStar Jack

SKU:
£266.66
£266.66
Unavailable
per item

PLEASE NOTE ALL POLARSTAR ENGINES NO LONGER COME WITH A QD FITTING


​The Jack allows for easy velocity adjustment. Using a standard M4 as an example, velocity can be adjusted from below 100fps and up to approximately 500fps with a .20g BB. Longer barrels will increase the maximum FPS while shorter barrels will decrease it. 


ROF: 30RPS+ 

The maximum cyclic rate of the Jack is affected by several factors, however, 30 rounds per second is a conservative number. Most configurations will exceed this easily. 


Comes with FCU (fire control unit), wire harness and trigger board 


If you choose to add a tank, line and reg

you will receive everything you need to get going with HPA.

Valken Tank or equivalent

HPA custom line

Balystik Regulator

Mini Lipo

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VAT is applied at checkout 20% for UK, 0% For EU Orders 
Please note all orders for next day delivery must be made before the 11am cut off.
​Orders after 1pm will be sent the following day

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​High Pressure Airsoft
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All rights reserved.
VAT Number 287 4035 83
  • Shop By..........
  • HPA Brand
    • PolarStar
    • Wolverine
    • Redline
    • Mancraft
    • Tapp Airsoft
    • Bingo/Junkiez 3D
    • Raven
    • BLACKLEAF CUSTOM
  • Product
    • Regulators
    • Lines
    • Tanks
    • Fittings
    • Upgrades
    • Batteries/Chargers
    • Maintenance
    • Scuba Tanks and Filling
    • Extras
  • Tactical Gear
    • Clothing
    • Attachments
    • Rails
    • Flash Hiders/Suppressors
    • Torches/Lasers/Optics
    • Ammo/Gas
    • Grenades/Pyro
    • Hard Cases
    • Night Vision and Accessories
  • Airsoft Guns
    • Rifles
    • Sub guns
    • Shotguns
    • Pistols
    • DMR'S/Sniper Rifles
    • AEG Magazines
    • Gas Gun Magazines
  • Package Deals