Polarstar Kythera HPA Engine Size:V2 Gearbox 1 and compatible guns

1 and compatible guns

and unique magazine well

It's only for stock Marui made cylinders

Longer style silencer for use on rifles and pistols

Comes in black or light grey color

Polarstar Kythera HPA Engine Size:V2 Gearbox 1 and compatible gunsThe Polarstar Kythera HPA Engine for airsoft AEGs. Fits in various mechbox styles including V2 (M4, etc), V3, and JG SR 25 style. Achieve 270 500 FPS with simple adjustments. In addition to the engine, you will need a base gun, HPA air tank, line, and regulator. The Kythera has been the most eagerly anticipated products from PolarStar in the past decade. This HPA system is a radical departure from all previous systems that PolarStar has produced since