PolarStar Kythera HPA Conversion Kit (V2 / V3, Semi-Auto ONLY) Style:V3/AK you would have to exchange

you would have to exchange the upper receiver to a G&G Combat Machine or ARP9

voltage and temperature to avoid any damage when something go wrong

Rapid Access will handle any type of Rifle Magazines thrown at it

- BurstX: gun shoot burst per trigger pull

Installation is quick and easy:

PolarStar Kythera HPA Conversion Kit (V2 / V3, Semi-Auto ONLY) Style:V3/AK you would have to exchangeThe 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.