Polarstar - EMG Blue & Silver Edition JACK Electro-Pneumatic Gearbox Conversion Kit (Model: V2 M4 / M16)

Features:

• CNC aluminum components with high performance delrin nozzle
• Universal cylinder design allows for use with most gearbox versions
• Optimized air flow promotes consistency and accuracy.
• Adjustable velocity and cyclic rate w/ FCU
• High performance and reliability, even in sub-freezing weather
• FCU programmable Semi Auto, Full Auto, and Burst modes

Description:

The Polarstar “JACK” was designed to answer the demand for an affordable, high performance HPA conversion for AEG's. The system is a drop-in cylinder replacement that will be universally compatible with a wide range of gearbox versions that have center-line nozzles.

Similar to its sister product, the F1, it 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, “JACK” will still retain the same performance and quality you have come to expect from PolarStar.

The JACK system only has 1 moving part, the nozzle, that acts as its own poppet valve (similar to the Fusion Engine poppet) which is piloted by the solenoid. The system itself only has 6 parts and can be completely disassembled by hand, making the system very reliable and easy to maintain.

The JACK is extremely efficient. The patent pending design of the F1 allows for the most direct air path to the nozzle with minimum dead volume resulting in better flow, faster response and less air used per shot. Using a stock VFC M4 as a test platform, the JACK was able to fire approximately 1000 rounds for a 13ci/3000psi cylinder before pressure dropped below regulated output.

Tech Specs:

Nozzle Type: TM M4 Series
Rate of Fire: Up to 30RPS+ (The maximum cyclic rate of the Jack is affected by several factors, however, 30 rounds per second is a conservative number. Most configurations will exceed this easily.)
Air Efficiency: 1000 shots from 13/3000 @ 1.5J (80PSI w/ .28g) 
Fire Modes: Semi Auto, Semi Only, Full Auto, Variable Burst Modes
PSI Range: 40 PSI - 130 PSI * Do not exceed for risk of damage
Package Includes: Pre-Assembled JACK Conversion Kit
Battery: 7.4v-9.6v NiMH or Lipo (Not included).