The Custom HPA Powered PolarStar Jack SSG-1 from Airsoftjunkiez is back in stock with three colour variants to choose from. Using the G&G SSG-1 as base gun, it uses the PolarStar Airsoft Jack HPA Engine with tuned FCU, 7.4 Lipo FCU Battery, and 3 PTS SpeedQB Midcap Magazines... "Airsoftjunkiez custom PolarStar Jack SSG-1 is back in stock. Comes with 3 SpeedQB mags."