Frequently Bought Together
Complete your setup with the most common add-ons.
PolarStar F2 HPA Engine Conversion Kit
Upgrade your airsoft rifle with the PolarStar F2 HPA Engine, a compact dual-solenoid system engineered for exceptional consistency, efficiency, and complete performance control.
Product Overview
Often described as a cylinder-sized Fusion Engine, the PolarStar F2 independently controls nozzle movement and air release through its patented dual-solenoid design. This allows precise adjustment of loading time and air volume while supporting both true closed-bolt and traditional AEG-style firing sequences. Its lightweight one-piece poppet valve operates efficiently at lower pressures, while the spring-loaded nozzle delivers consistent loading force across the operating range.
Features & Benefits
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Dual-solenoid design for advanced performance tuning
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Adjustable closed-bolt and AEG firing modes
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45–145 PSI operating-pressure range
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CQB-to-DMR velocity adjustment without changing nozzles
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Up to approximately 30 rounds per second
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Efficient airflow for excellent shot capacity
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Compact, lightweight cylinder-style construction
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Broad AEG gearbox compatibility
Specifications
The F2 can produce approximately 280–480 FPS with 0.20g BBs in a standard M4 configuration, depending on pressure, barrel length, air seal, and setup. PolarStar rates the system for 1,000-plus shots from a 13/3000 tank at 1.5 joules under its published test configuration.
Compatibility
Available configurations support numerous platforms, including Version 2 M4/M16, Version 3 AK, M249, ARES M4, ARES EFCS/APS eSE, VFC HK417/G28, KAC LMG, and M60 gearboxes. Select the correct model and nozzle configuration for your replica.
What’s Included
Includes the configured F2 engine, installed filter fitting, FCU, switchboard, wiring harness, and model-specific conversion components. HPA tank, regulator, air line, and FCU battery are sold separately.
Installation
Professional installation and tuning are recommended to ensure correct alignment, air sealing, wiring, and safe operation.
PolarStar F2 HPA Engine - General Information
| Specification | Value |
|---|---|
| Product Name | PolarStar F2 HPA Engine Conversion Kit |
| Product Type | Dual-Solenoid HPA Airsoft Engine |
| Operating Pressure | 45–145 PSI |
| Adjustable Velocity | CQB-to-DMR range; approximately 280–480 FPS with 0.20g BBs in a standard M4 setup |
| Maximum Rate of Fire | Up to approximately 30 rounds per second |
| Firing Modes | True closed-bolt and AEG-style operation |
| Gearbox Compatibility | Multiple AEG platforms, including V2 M4/M16, V3 AK and other model-specific configurations |
| Manufacturer | PolarStar Airsoft |
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