PolarStar Airsoft Announces The "Jack"
OptimusPrime
10 May 2015
PolarStar Airsoft announces a more affordable version of their HPA-powered system. Called the "Jack", this is not a complete drop-in gearbox replacement but is rather a drop-in cylinder replacement that they say will be compatible with a good range of AEG gearbox versions. This is not a replacement of their F1 product and both will be produced alongside each other.
Click here to read the full story on the product and to learn the differences between this, the F1, Fusion Engine, and their Project X.