Polarstar JACK - HPA Standard FCU Conversion Kit Multicam but not for the Action

but not for the Action Army Hop up Chamber

The NcStar Plate Carrier Vest is a great MOLLE compatible vest at a very competitive price

Using full aluminum metal components mounted to a robust polymer frame

While it includes a basic starter battery and charger

This is for the mount system only

Polarstar JACK - HPA Standard FCU Conversion Kit Multicam but not for the ActionThe Polarstar JACK HPA Standard FCU Conversion Kit. This is the full sized FCU version for easy programming. Contains everything you need internally. Works drop in with most M4 AK platforms. G&G, Elite Force, JG, and most are pretty easy to install. Watch some Youtube videos on how to put it in yourself. With the Polarstar JACK engine, all you need to complete your HPA setup is: HPA Air Tank (non SLP tan regulator is okay, Ninja, Valken, FS is good)