HPA replica MTW HPA system HPA Magazine | Electronics Battery Nozzle Parts | Stock Grip Dropstock | Regulator Hose Fittings
| Air tanks
Air systems |
AEG Replica
P6 Custom | Magazine Hop-Up Precision barrel Complete upper Stand | Mosfet AEG spring Trigger Motor
| Gearbox
| Body and Parts
Dropstock | Kriss Vector Zone Scorpion Zone AEP Zone PTW Zone Skins |
Gas & Co2 airsoft pistol Gas & Co2 airsoft rifles HOLSTER | Magazine
Magazine accessory Stand | Precision barrel Hop-up
Conversion kit | Pistol parts
AAP-01 Universe | GBBR rifle parts
RIS for M4 GBB Sling mount MWS Universe | Grenade launcher 40mm Grenade Grenade |
Sniper replica Magazine | Spring Precision barrel Hop-up Barrel spacer | Piston Spring guide Cylinder set Cylinder head | Trigger group Flash hider Outer barrel Upper Sniper | Cocking Handle Stock Rail Skins | SILVERBACK
VSR10 universe AAC T10 universe STRIKER universe |
SHOTGUN | Shotgun shell | Parts | Shell holder | Tank |
Stock Supressors
RIS System
| Front grips Front Rail Scopes and red dots
| Mount & accessories Iron Sights Sling Swivel Flashlights & Lasers | Communication Flash hider Gas block Magazine accessory | Magwell AN PEQ Tracer device Chrony | Case Tools Shooting target Bipod |
Battery & related
| Gas CO2 Skins | BBs BB loader | Maintenance Paint Light Stick | Battery Smoke grenade |
Gloves Slings Bags | Combat vest Face protection Googgles Powerbank | Ghillie Kneepad Helmet for roleplay Magazine holder | Team Armband Shemaghs Clothing BELT | Knife Cap / Beanie HOLSTER Pouch | Survival GPS Patchs Other |
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ConnexionThe 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.
The name "Kythera" (ky-the-ra) was derived from the Antikythera Mechanism which is a mysterious device that was discovered by sponge divers off the coast of the Greek island Antikyther. The mechanism was so advanced in design that scientists have been studying it for decades to discover its purpose. The machine dates from around the end of the 2nd century B.C. and is the most sophisticated mechanism known from the ancient world. Nothing as complex is known for the next thousand years. The Antikythera Mechanism is now understood to be dedicated to astronomical phenomena and operates as a complex mechanical "computer" which tracks the cycles of the Solar System.
For this reason we used the name Kythera for the valve mechanism at the core of a new line of PolarStar mechanical HPA systems. Although it contains very few parts and is easy to install and maintain, the system incorporates a very intelligent design and is unlike anything else on the market. The system was designed as a mechanical system from the ground up and uses a realistic trigger mechanism which can be applied to single-shot, semi-automatic and fully-automatic systems. The first of these systems is Kythera SA (Semi-Automatic), the semi-auto-only variant for use in AEG gearboxes.
So, what makes the Kythera so unique?
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 hardened alloy steel sears catch and release the stainless steel spool 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 to feel 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.
The design of the Kythera SA completes a shot cycle on the trigger pull. This gives you the proven closed bolt performance of the Fusion Engine and F2 in a completely mechanical, waterproof system with a realistic trigger. 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.
The valve design of the Kythera 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.
The steel cord visible at the back of the system is attached to a cocking mechanism for the internal spool valve. Although the system automatically cocks the spool valve when the system is pressurized, since the Kythera uses a balanced valve, it is possible in certain situations that the valve could stall and needs to be manually cocked. This typically only happens if the system is run completely out of air so that the pressure drops below the operating range of the system. The cord is designed to be either routed through the grip of the rifle for easy access or even possibly attached in some fashion to the charging handle.
The Kythera SA system installs into a standard gearbox as a single assembly and typically does not require any 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.
The Kythera has a wide operating pressure range of 60psi to 180psi which allows you to fine tune the velocity of the system and tailor for different requirements and applications. Within this pressure range we observed a muzzle velocity of 270 - 500fps w/ .20g using a 6.05x380mm barrel. This lets a single Kythera be used in any role ranging from CQB to Sniper by mainly just adjusting the input pressure from your air rig.
Please note that instaling a HPA drop in system is recommanded for skilled gunsmith only. The product comes as a spare part and does not come with installation manual. By purchasing an HPA system you take entire responsability of the assembly and upcoming results. For products delivered with a trigger board, contactors / switch are not guaranted by the manufacturer in case of break. We advice to take extreme care when installing the selector plate in order to not break the button. Regarding the trigger switch, it is recommended to block mecanicaly the trigger once the the trigger switch is activated to avoid excessive pressure on it.
Type | M4 |
Caliber | 6mm Airsoft |
HPA System | Polarstar Kythera |
Material | Aluminum |
Firing mode | Semi automatic |
Power source | HPA |
HPA Fitting type | 6mm hose |
Packaging | Single Product |
PolarStar Airsoft was formed in 2009 as a part of PolarStar Engineering & Machine with the goal of bringing our engineering experience and focus on quality to airsoft. Since then, PolarStar has made innovative airsoft products of the highest quality, designed and manufactured in the USA. PolarStar products, including the patented Fusion Engine are designed by airsoft players, incorporating airsoft experience with the feedback of the commnity.
Bonjour compatible avec arp9 ?
Cordialement
Bonjour , oui il est compatible , il vous faudra simplement trouver une détente M4 aeg classique .
Cordialement,
bonjour compatible avec ares amoeba am 014 ?
cordialement
Bonjour , non ce n'est pas compatible .
Cordialement,
Bonsoir compatible avec amoeba am-14 ?
Cordialement
Bonjour , non il n'est pas compatible .
Cordialement,
Bonjour,
Il est compatible avec un HK416 de chez acturus ?
Bonjour , non il n'est pas compatible .
Cordialement,
bonjour est il compatible avec une scar h mk 17 ssr vfc/cybergun
Bonjour , oui il est compatible .
Cordialement,
Est-ce que ce système HPA est compatible sur une UTR-45 de chez Double Eagle ?
Merci d’avance.
Bonjour , oui il est compatible .
Cordialement,
is this compatible with the gearbox of the scar-H tpr Cybergun/Ares?
Hello , no is not compatible .
Regards,
Bonjour ce système hpa est il compatible avec la gear box de la sa-e05 de chez specna
Bonjour , oui il est compatible .
Cordialement,
Bonjour le kit est il compatible avec une cyma 008 Gear box v2 ? Merci d'avance pour votre réponse
Bonjour;
oui il sera compatible.
Cordialement.
Bonjour, j’aimerai savoir si ca passe dans une RÉPLIQUE SA-H08 M ONE™ - SPECNA ARMS.
Merci
Bonjour;
oui il sera compatible.
Cordialement.