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F1 or JACK systems
Highly flexible rubber air line reinforced with a nylon braided sheath promotes maximum mobility while reducing the risk of kinking
Why this matters
All inserts equipped with expansion chamber
Sometimes with rifles where the bolt securing the buffer tube screws directly into the back of the engine
Fire Control Unit, Rev. 3, Universal Long sleeve Tshirt F1 or JACK systemsThe REV3 FCU follows the classic design of our very first FCU and it is considered to be the finest fire control units on the market. Since it is equipped with an LCD screen and joystick you are able to easily scroll through menus and precisely adjust settings for the utmost control over the system. This FCU is also universally compatible with all PolarStar HPA systems including both dual and single solenoid systems. This latest REV3 model features
US$ 77.60
US$ 83.00
US$ 165.95