PolarStar JACK AK Gearbox HPA Electronic Pneumatic Conversion Kit Add to Cart

• PolarStar's affordable and efficient HPA conversion for AEGs
• Easy switch out nozzle makes this kit universal with a wide range of gearboxes
• A single moving part makes the engine very reliable and easy to maintain
• Allows you to adjust muzzle velocity substantially from 250 - 500 FPS
• Max velocity potential varies depending on barrel length and tightness of the bore
• Includes an on-board FCU (Fire Control Unit)
• Adjustable cyclic rate, fire modes, and poppet dwell
• Stabilizes the BB in the hop-up unit before firing
• Improves hop-up performance with a wide range of stock and aftermarket options
• Replaces your original gearbox parts with a programmable pneumatic system for enhanced reliability