POLARSTAR Light Nozzle/Poppet Spring, FE/F2 Kythera
£2.50
The PolarStar Light Nozzle/Poppet Spring for FE, F2, and Kythera is a lighter-weight replacement spring for the nozzle/poppet assembly in PolarStar Fusion Engine, F2, and Kythera engines — used to tune the nozzle return force and cycle timing.
PolarStar Light Nozzle/Poppet Spring – FE / F2 / Kythera
The PolarStar Light Nozzle/Poppet Spring for FE (Fusion Engine), F2, and Kythera is a lighter-rate replacement spring for the nozzle and poppet assembly in these three PolarStar HPA engines. In PolarStar engines, the nozzle/poppet spring controls the return force of the nozzle assembly after each shot — the spring rate affects the timing and feel of the cycling sequence. The Light spring provides less return force than the standard spring — affecting cycle timing, trigger feel, and how quickly the nozzle resets between shots. Spring swapping is an advanced tuning step typically done after initial engine setup and velocity tuning, to refine cycle characteristics for a specific shooting feel or timing preference.
Compatible with Fusion Engine (FE), F2, and Kythera engines — these three share a compatible nozzle/poppet spring specification. OEM PolarStar component. For PolarStar operators who want to explore lighter spring tuning for their engine’s cycle timing after initial setup is complete.
- PolarStar Light Nozzle/Poppet Spring
- For Fusion Engine (FE), F2, and Kythera engines
- Lighter rate than standard spring — tuning component
- Affects nozzle return force and cycle timing
- Made by PolarStar Airsoft
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