PLEASE NOTE ALL POLARSTAR ENGINES NO LONGER COME WITH A QD FITTING
The Jack allows for easy velocity adjustment. Using a standard M4 as an example, velocity can be adjusted from below 100fps and up to approximately 500fps with a .20g BB. Longer barrels will increase the maximum FPS while shorter barrels will decrease it.
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.
Comes with FCU (fire control unit), wire harness and trigger board
If you choose to add a tank, line and reg
you will receive everything you need to get going with HPA.
Valken Tank or equivalent
HPA custom line