101Tech USA are distributors for PolarStar Airsoft and they are now taking pre-orders for the Polarstar Kythera which is a Semi-Auto system for V2-M4 airsoft guns... "The Kythera has been the most eagerly anticipated product 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.
101Tech, the official distributor PolarStar Airsoft products announce the new PolarStar F2 Version 3 Engine... " We are happy to announce that the much antisipated F2™ V3 Conversion Kit is now available and ready for order. The kit comes with the new F2V3 Switchboard and the #2 nozzle which supports most AK models such as those made by G&G, Tokyo Marui and clones such as CYMA.