Description
Polarstar JACK HPA Conversion Kit M4
The JACK™ was designed to answer the demand for an affordable, high performance HPA (High Pressure Air) conversion for AEG's. The system is a drop-in cylinder replacement that is universally compatible with a wide range of gearbox versions that have center-line nozzles. PolarStar Filter Fitting now included!
Similar to its sister products, the JACK™ replaces the original gearbox components with a programmable pneumatic system allowing for higher performance and greater reliability over a gear driven system. Although economically priced, the JACK™ still retains the same performance and quality you have come to expect from PolarStar products.
The JACK™ has only one moving part, the nozzle, which acts as its own poppet valve. Similar to the Fusion Engine™ and F2™ poppet, the nozzle is only piloted by the solenoid to open air flow through the poppet with none of the firing air coming from the solenoid itself. This design lets the JACK™ send a higher flow of air down the barrel than systems that only use a solenoid as the firing valve.
The JACK™ allows for easy velocity adjustment by changing input pressure and does not require different nozzles to reach its full velocity range. Using a standard M4 as an example, velocity can be adjusted up to approximately 500fps with a .20g BB. Velocity can vary per model as longer barrels will increase the maximum velocity while shorter barrels will decrease it.
The maximum cyclic rate of the JACK™ is affected by several factors such as the operating pressure as well as quality of the magazine and BB's used. However, 30 rounds per second is achievable in most standard configurations.
The JACK is an efficient HPA regulator and can achieve 1000+ shots from 13/3000 @ 1.5J w/ .28g
The JACK comes with a Filter Fitting installed, FCU, Switchboard, Wire Harness and any additional components needed to convert your AEG M4 airsoft rifle. The HPA Tank, Air Rig (regulator and line) and Battery needed to operate the system are sold separately.
Features
- Designed, manufactured and built in the U.S.A.
- Assembled from CNC machined aluminum components with high performance delrin nozzle
- Optimized flow profile, firing point and flow path promotes superior shot consistency and accuracy
- Capable of functioning in damp and sub-freezing climates without affecting performance or reliability
- User selectable Semi/Full Auto, Semi Auto Only and Variable Burst modes
- Independently adjustable velocity and cyclic rate
- Auto Switch mode allows for proper selector configuration for specific models
- Easy to use Fire Control Unit (FCU) with LCD display and five position joystick
- Instantaneous trigger response. Faster than an AEG with a Li-po
- Note: HPA (High Pressure Air) or Nitrogen only. CO2, Propane/Green Gas will damage the system
What to know about Airsoft High Pressure Air (HPA) Systems
HPA Tanks are a safe and effective source of power for airsoft HPA systems, but there are some precautions you must follow when using HPA systems:
- NEVER put oil in the fill valve of the tank, or else the tank can combust on refill and serious injury can occur.
- ONLY allow properly trained professionals to fill your HPA tank
- ALWAYS double check your Regulator pressure. Never raise the regulated pressure above 120 PSI.
- Make sure to have your tank Hydro-Tested when necessary (Usually 3-5 years from date marked on tank, depending on make and model)
- Never fill a HPA tank that shows signs of damage or wear
- Be sure to properly transport your HPA tank. Store in a safe, secured place when in a vehicle, and be sure to stow in a bag or tank cover when in use. Avoid dropping the tank on hard surfaces as this can seriously damage the tank and lead to failure
- Always turn off the tank and bleed the air line when you are done. This will ensure a longer tank and system lifespan
