PolarStar JACK V2 Conversion Kit, M4/M16

• Made in the USA
• Velocity: 500fps w/ .20g @ 130psi
• ROF: 30rps
• Air Efficiency: 1000+ shots from 13/3000 @ 1.5J w/ .28g
• PolarStar's affordable and efficient HPA conversion for AEG's
• Easy switch out nozzle makes kit universally with a wide range of gearboxes
• A single moving part makes the rifle very reliable and easy to maintain
• Able to adjust your muzzle velocity substantially from 250 to 500 FPS
• Max velocity potential varies depending on barrel length and tightness of the bore
• Includes an on-board FCU (Fire Control Unit)
• Adjust cyclic rate, fire modes and poppet dwell
• Stabilizes the BB in the hop up before firing
• Improves hop up performance with a wide range of stock and aftermarket options
• Replaces original gearbox pars with a programmable pneumatic system for enhanced reliability

****Important All Replicas, unless otherwise stated, Do Not Include a Battery or Charger. Please note: Some items may be dropshipped from our suppliers, allowing us to offer you a wider selection and better prices. This may result in slightly longer shipping times. We're actively working with our suppliers to ensure timely delivery. Thank you for your understanding****