Polarstar JACK™ HPA Conversion Kit GEARS Pre-fitted with mini JST connectors

Pre-fitted with mini JST connectors for hassle-free installation and compatibility with standard HPA systems

Perun V3 Optical itself has no moving parts at all thanks to use of optical sensors for gear

480 Motor Grip

M60 and PKM that were designed to feed when activated by the trigger since their magazines feed at a slower rate

Polarstar JACK™ HPA Conversion Kit GEARS Pre-fitted with mini JST connectorsPolarstar JACK Engine V2 Gel Blaster Conversion Kit #1 M4 Nozzle Code Name "Simple Jack" 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. Similar to its sister products, the JACK replaces the original gearbox components with a