{"product_id":"hpa-polarstar-kythera-sa-jing-gong-sr25-mechanical-engine-v2-5-by-polarstar","title":"HPA Polarstar Kythera SA Jing Gong SR25 Mechanical Engine V2.5 by Polarstar","description":"\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera has been the most eagerly anticipated products \u003cbr\u003efrom PolarStar in the past decade. \u003cbr\u003eThis HPA system is a radical departure from all previous\u003cbr\u003esystems that PolarStar has produced since the Kythera does\u003cbr\u003enot use a battery, an FCU or any type of electronics. \u003cbr\u003eThe Kythera is completely mechanical. \u003cbr\u003eThis means you never have to worry about charging batteries \u003cbr\u003eor work with delicate electronics. It also means that the system\u003cbr\u003eis completely waterproof.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe name \"Kythera\" (ky-the-ra) was derived from the Antikythera\u003cbr\u003eMechanism which is a mysterious device that was discovered\u003cbr\u003eby sponge divers off the coast of the Greek island Antikyther. \u003cbr\u003eThe mechanism was so advanced in design that scientists have\u003cbr\u003ebeen studying it for decades to discover its purpose. \u003cbr\u003eThe machine dates from around the end of the 2nd century \u003cbr\u003eB.C. and is the most sophisticated mechanism known from \u003cbr\u003ethe ancient world. \u003cbr\u003eNothing as complex is known for the next thousand years. \u003cbr\u003eThe Antikythera Mechanism is now understood to be dedicated \u003cbr\u003eto astronomical phenomena and operates as a complex\u003cbr\u003emechanical \"computer\" which tracks the cycles of the \u003cbr\u003eSolar System.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFor this reason we used the name Kythera for the valve \u003cbr\u003emechanism at the core of a new line of PolarStar mechanical \u003cbr\u003eHPA systems. \u003cbr\u003eAlthough it contains very few parts and is easy to install and \u003cbr\u003emaintain, the system incorporates a very intelligent design and \u003cbr\u003eis unlike anything else on the market. \u003cbr\u003eThe system was designed as a mechanical system from the\u003cbr\u003eground up and uses a realistic trigger mechanism which can be \u003cbr\u003eapplied to single-shot, semi-automatic and fully-automatic systems.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe first of these systems is \u003cspan style=\"color: rgb(255, 0, 0);\"\u003eKythera SA (Semi-Automatic)\u003c\/span\u003e, the \u003cbr\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003esemi-auto-only\u003c\/span\u003e\u003c\/span\u003e variant for use in AEG gearboxes. \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eSo, what makes the Kythera so unique?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eREALISTIC TRIGGER:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat sets this system apart from other mechanical systems is the \u003cbr\u003edesign of its trigger. \u003cbr\u003eThe trigger mechanism is designed to replicate the function,\u003cbr\u003eweight and feel of a real single-action firearm trigger.\u003cbr\u003eIt feels real because it is real. \u003cbr\u003eThe hardened alloy steel sears catch and release the stainless \u003cbr\u003esteel spool valve in the same way the sears of a real firearm catch \u003cbr\u003eand release the hammer or striker. \u003cbr\u003eThis gives the Kythera trigger the distinct break and reset you \u003cbr\u003ewould expect to feel when firing a real single action firearm. \u003cbr\u003eThe trigger mechanism in the Kythera SA is also adjustable, \u003cbr\u003eallowing the user to fine tune the weight and over travel. \u003cbr\u003eAdditionally, the internal firing valve is balanced and the only \u003cbr\u003eforce applied during firing is the main spring. \u003cbr\u003eThis means the function and feel of the trigger is independent of \u003cbr\u003einput pressure and velocity.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eCOMPLETE SHOT CYCLE:\u003c\/span\u003e\u003cbr\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe design of the Kythera SA completes a shot cycle on the \u003cbr\u003etrigger pull. \u003cbr\u003eThis gives you the proven closed bolt performance of the Fusion \u003cbr\u003eEngine and F2 in a completely mechanical, waterproof system \u003cbr\u003ewith a realistic trigger. \u003cbr\u003eIt does not require the trigger to be released before the nozzle \u003cbr\u003echambers the next round and the firing volume is refilled.\u003cbr\u003eThis occurs automatically and consistently every shot, with \u003cbr\u003eadjustable nozzle dwell and return speed.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAs the system resets and recharges immediately after firing, \u003cbr\u003eit is ready to fire again before the trigger has been released. \u003cbr\u003eThis means the system can cycle very quickly for faster follow\u003cbr\u003eup shots and a lower potential for double feeding.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eEXTREMELY EFFICIENT AND CONSISTENT:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe valve design of the Kythera operates without the need for \u003cbr\u003eair to control the opening or closing of the valve. \u003cbr\u003eWithout a pilot valve, 100% of the air going into the system is\u003cbr\u003efired through the nozzle allowing it to operate very efficiently. \u003cbr\u003eIn addition to being extremely efficient, the system is also \u003cbr\u003eextremely consistent. \u003cbr\u003eThe valve is released at the same point every shot with the \u003cbr\u003esame force applied, regardless of trigger input.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eUNIVERSAL CHARGING CORD:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe steel cord visible at the back of the system is attached to \u003cbr\u003ea cocking mechanism for the internal spool valve.  \u003cbr\u003eAlthough the system automatically cocks the spool valve when \u003cbr\u003ethe system is pressurized, since the Kythera uses a balanced \u003cbr\u003evalve, it is possible in certain situations that the valve could stall \u003cbr\u003eand needs to be manually cocked. \u003cbr\u003eThis typically only happens if the system is run completely out \u003cbr\u003eof air so that the pressure drops below the operating range of \u003cbr\u003ethe system. \u003cbr\u003eThe cord is designed to be either routed through the grip of the \u003cbr\u003erifle for easy access or even possibly attached in some fashion \u003cbr\u003eto the charging handle.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eEASY INSTALLATION\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera SA system installs into a standard gearbox as a \u003cbr\u003esingle assembly and typically does not require any modification \u003cbr\u003eto the gearbox.\u003cbr\u003eThere are no separate parts to install and the only parts needing\u003cbr\u003eto be retained from the gearbox is the trigger, spring guide, \u003cbr\u003eselector and safety components.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eWIDE VELOCITY ADJUSTMENT RANGE\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera has a wide operating pressure range of 60psi to\u003cbr\u003e180psi which allows you to fine tune the velocity of the system\u003cbr\u003eand tailor for different requirements and applications. \u003cbr\u003eWithin this pressure range we observed a muzzle velocity of \u003cbr\u003e270 - 500fps w\/ .20g using a 6.05x380mm barrel. \u003cbr\u003eThis lets a single Kythera be used in any role ranging from CQB\u003cbr\u003eto Sniper by mainly just adjusting the input pressure from your air rig.\u003cbr\u003eDesigned from the ground up as a high performance mechanical \u003cbr\u003eHPA system, not a modification of a solenoid operated design.\u003cbr\u003ePatent pending valve mechanism provides excellent efficiency and \u003cbr\u003econsistent velocity combined with a realistic trigger pull and reset.\u003cbr type=\"_moz\"\u003eCompletes a full shot cycle on the trigger pull alone which \u003cbr\u003etranslates into consistent nozzle movement and rapid follow up \u003cbr\u003eshots.\u003cbr type=\"_moz\"\u003eAdjustable trigger. \u003cbr\u003eAdjustments include: Weight, length of pull and over travel.\u003cbr type=\"_moz\"\u003eAdjustable nozzle dwell\/return speed.\u003cbr type=\"_moz\"\u003eWide operating pressure range of 60 to 180psi.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCompatible with Jing-Gong SR25 and similars\u003cbr type=\"_moz\"\u003ePer info e\/o acquisto veloce senza account:\u003cbr\u003einfo@softair-italia.it\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Polarstar HPA","offers":[{"title":"Default Title","offer_id":53429239644503,"sku":"10001003-YA-MACRO","price":349.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/6346\/5367\/products\/HPA_20Polarstar_20Kythera_20Mechanical_20Engine_20V2_20by_20Polarstar_200_9c1d82d3-4afb-4365-b0ae-1dacafab960c.png?v=1672533674","url":"https:\/\/www.softair-italia.it\/products\/hpa-polarstar-kythera-sa-jing-gong-sr25-mechanical-engine-v2-5-by-polarstar","provider":"Softair Italia","version":"1.0","type":"link"}