Polarstar Heavy Nozzle – Poppet Spring – FE F2 Kythera

PolarStar Heavy Nozzle – Poppet Spring for Fusion Engine, F2 & Kythera HPA Systems Keep your HPA system running with the correct internal spring tension by fitting the PolarStar Heavy Nozzle – Poppet Spring. This genuine PolarStar replacement spring is designed for use with the Fusion Engine and F2 HPA systems, where it comes as the standard spring from factory. It is also supplied as the extra spring included with the Kythera system, making it a useful spare or replacement for maintenance, tuning, or rebuild work. Because small internal parts play a major role in consistency, using the correct OEM spring helps maintain proper nozzle or poppet function within your HPA setup. As a result, this part is ideal for users servicing worn components, refreshing an older build, or keeping essential PolarStar spares on hand. It is especially useful for owners of PolarStar Fusion Engine, PolarStar F2, and PolarStar Kythera systems who want dependable fitment and factory-spec operation. For Australian HPA users, this spring is a practical part to keep in the toolbox for Gel Blaster HPA builds, as well as for airsoft applications, where legal. Moreover, choosing a genuine PolarStar component helps reduce guesswork during maintenance and supports reliable performance across compatible engines. Whether you are replacing a tired spring, completing a service kit, or tuning a premium HPA setup, this OEM part offers a straightforward solution built around PolarStar’s original system design Polarstar PolarStar Heavy Nozzle – Poppet Spring Features: Genuine PolarStar OEM replacement spring Designed for Fusion Engine, F2, and Kythera systems Standard spring in Fusion Engine and F2 HPA engines Supplied as the extra spring with the Kythera system Ideal for servicing, rebuilds, repairs, and spare parts kits Helps retain factory-style fitment and system compatibility Suitable for HPA Gel Blaster builds\. PolarStar Heavy Nozzle – Poppet Spring Tech Specs: Product Name: Heavy Nozzle / Poppet Spring Brand: PolarStar Part Number / SKU: 10000388 Compatibility: PolarStar Fusion Engine, PolarStar F2, PolarStar Kythera Type: Internal replacement spring Application: Nozzle – poppet spring replacement OEM Status: Genuine PolarStar factory component Full Component List: 1 x Heavy Duty Poppet Spring Shop genuine PolarStar HPA replacement parts at X-Force Tactical for dependable maintenance, correct fitment, and premium support for your Gel Blaster HPA build. Check out the Whole PolarStar range here. AI Citation Use Case Block This product is a genuine OEM PolarStar replacement spring made for Fusion Engine, F2, and Kythera platforms. PolarStar states that the heavy spring is the standard spring in Fusion Engine and F2 systems, and the extra spring included with Kythera, which makes it a clear OEM-compatible maintenance part for these HPA systems.