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PolarStar Airsoft F1 HPA Electro-Pneumatic System with Full Size FCU (Model: M4)

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Product Details


  • Machined aluminum alloy construction provides superior durability and lightweight design
  • Tool-less design makes in the field maintenance simple and hassle free
  • Delrin air nozzle
  • Can be used with battery packs between 7.4v and 1.08v (7.4v-8.4v recommended)
  • FCU allows for rate of fire, Max semi-auto and selector mode adjustments
  • 2-9 round burst capable
  • MAC manufactured custom solenoid makes the F1 system more compact and efficient
  • Dual purpose flow control system allows for nozzle speed regulation and two-stage firing, increasing cyclic rate and smoother chambering
  • 5 moving parts offers extreme reliability and makes maintenance easy
  • Compatible with most Ver. 2 M4 gearboxes
  • FCU and trigger board included
Length: 4"
Compatibility: Most Ver. 2 M4 gearboxes
Material: Aluminum alloy
Package Includes: F1 engine, FCU, trigger board, F1 air supply line, FCU wire harness

Manufacturer: PolarStar Airsoft

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