- Compatible with any PolarStar system that uses a REV2 or REV3 FCU.
- 18″ is standard length for V2 kits in F2, F1 and JACK. Also recommended for FE’s being installed into full stock replicas (e.g. M16A3).
- 13″ is standard length for V2 FE as well as V3 F2, F1 and JACK kits.
- 7.5″ is standard length for V3 and MG FE kits but is also recommended for wiring the FCU to the pistol grip with UGS/CGS installs.
Black: Nozzle (not used for JACK/F1), White: Poppet, Red: Selector, Blue: Trigger, Brown: Ground
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