Polarstar Complete O – Ring Set, F1
£3.00
The PolarStar Complete O-Ring Set for F1 is the full OEM replacement O-ring set for the PolarStar F1 HPA AEG engine — all O-ring sizes for a complete F1 engine sealing service.
PolarStar Complete O-Ring Set – F1
The PolarStar Complete O-Ring Set for F1 is the OEM replacement O-ring set for the PolarStar F1 HPA AEG engine. The F1 is PolarStar’s first-generation HPA AEG engine — the platform that established the HPA AEG conversion concept in high-end airsoft. The F1 uses a different internal architecture to the F2, with specific O-ring sizes at its piston, nozzle, and valve positions. As these O-rings age under pressure cycling, they harden and crack — creating air leaks, velocity loss, and inconsistent cycling in the F1 engine. This complete kit provides all O-ring sizes for a full F1 engine service in one maintenance pass.
OEM PolarStar maintenance kit for F1 engine servicing. The F1 has different O-ring specifications to the F2 — use the F1-specific kit, not the F2 kit, for F1 engine maintenance.
- PolarStar Complete O-Ring Set — F1
- All O-ring sizes for full F1 engine sealing service
- F1 specific — different specifications to F2 O-ring kit
- Restores air sealing after O-ring wear or degradation
- Made by PolarStar Airsoft
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