PolarStar JACK HPA Conversion Kit – V2 M4/M16 Airsoft Upgrade

Precision Engineered in the USA – Transform your AEG into a high-performance HPA powerhouse with this CNC-machined aluminum conversion kit. Designed for Tokyo Marui and compatible M4 platforms, the JACK system delivers unmatched reliability with only one moving part (Delrin nozzle) for minimal maintenance.

Why Choose the JACK System?

• Ultra-Responsive Performance: Instant trigger response outperforms LiPo-powered AEGs, with adjustable FPS (280–500+ with 0.20g BBs) via input pressure and poppet dwell tuning.
• All-Weather Reliability: Functions flawlessly in freezing or damp conditions—no gearbox wear, no motor burnout.
• Smart Fire Control: Intuitive FCU with LCD display and 5-way joystick adjusts cyclic rate (1–30+ RPS), fire modes (Semi/Burst/Full Auto), and dwell on the fly.
• Air Efficiency: Optimized airflow design reduces dead volume, conserving air while maintaining consistent shot-to-shot accuracy.

Plug-and-Play Simplicity

Drop into most V2 gearboxes with center-line nozzles—no permanent modifications needed. The compact FCU fits inside battery compartments, powered by a 7.4V–9.6V LiPo/NiMH (not included).

Note: Requires separate HPA tank/regulator (sold separately).

Ideal for: Airsoft players seeking tournament-grade precision, durability, and customization without Fusion Engine costs.

Included: Pre-assembled JACK kit (40–130 PSI operating range). Backed by PolarStar’s legacy of electro-pneumatic innovation.