PolarStar Kythera HPA Conversion Kit (V2 / V3, Semi-Auto ONLY) Style:V2/M4 Hydro Date: 5 years

Hydro Date: 5 years

Gearbox: Avalon ECS V2 gearbox w/ quick spring change

a fully functional Minigun style heavy weapon for under one thousand dollars

and also fully compatible with most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs

Barrel Threading: 14mm CCW

PolarStar Kythera HPA Conversion Kit (V2 / V3, Semi-Auto ONLY) Style:V2/M4 Hydro Date: 5 yearsThe 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 the Kythera does not use a battery, an FCU or any type of electronics. The Kythera is completely mechanical. This means you never have to worry about charging batteries or work with delicate electronics. It also means that the system is completely waterproof.