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 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.

Realistic Trigger

-What sets this system apart from other mechanical systems is the design of its trigger. The trigger mechanism is designed to replicate the function, weight and feel of a real single-action firearm trigger. It feels real because it is real. The tool steel sears catch and release the firing valve in the same way the sears of a real firearm catch and release the hammer or striker. This gives the Kythera trigger the distinct break and reset you would expect when firing a real single action firearm. The trigger mechanism in the Kythera SA is also adjustable, allowing the user to fine tune the weight and over travel. Additionally, the internal firing valve is balanced and the only force applied during firing is the main spring. This means the function and feel of the trigger is independent of input pressure and velocity.

Complete Shot Cycle

-The design of the Kythera SA completes a shot cycle on the trigger pull. It does not require the trigger to be released before the nozzle chambers the next round and the firing volume is refilled. This occurs automatically and consistently every shot, with adjustable nozzle dwell and return speed.

As the system resets and recharges immediately after firing, it is ready to fire again before the trigger has been released. This means the system can cycle very quickly for faster follow up shots and a lower potential for double feeding.

Extremely Efficient And Consistent

-The Kythera valve design operates without the need for air to control the opening or closing of the valve. Without a pilot valve, 100% of the air going into the system is fired through the nozzle allowing it to operate very efficiently. In addition to being extremely efficient, the system is also extremely consistent. The valve is released at the same point every shot with the same force applied, regardless of trigger input.

Easy Installation

-The Kythera SA system installs into a standard gearbox as a single assembly and without modification to the gearbox. There are no separate parts to install and the only parts needing to be retained from the gearbox is the trigger, spring guide, selector and safety components.

Wide Velocity Range

-The Kythera boasts a wide operating pressure range and can operate between 60 and 180psi. Within this pressure range we observed a muzzle velocity of 270 - 500fps w/ .20g using a 6.05x380mm barrel.

• Designed from the ground up as a high performance mechanical HPA system, not a modification of a solenoid operated design.
• Patent pending valve mechanism provides excellent efficiency and consistent velocity combined with a realistic trigger pull and reset.
• Completes a full shot cycle on the trigger pull alone which translates into consistent nozzle movement and rapid follow up shots.
• Adjustable trigger. Adjustments include: Weight, length of pull and over travel.
• Adjustable nozzle dwell and nozzle return speed.
• Wide operating pressure range of 60 to 180psi.

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