{"product_id":"hpa-polarstar-kythera-sa-m4-mechanical-engine-v2-by-polarstar","title":"HPA Polarstar Kythera SA M4 Mechanical Engine V2 by Polarstar","description":"\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera has been the most eagerly anticipated products \u003cbr\u003e\r\nfrom PolarStar in the past decade. \u003cbr\u003e\r\nThis HPA system is a radical departure from all previous\u003cbr\u003e\r\nsystems that PolarStar has produced since the Kythera does\u003cbr\u003e\r\nnot use a battery, an FCU or any type of electronics. \u003cbr\u003e\r\nThe Kythera is completely mechanical. \u003cbr\u003e\r\nThis means you never have to worry about charging batteries \u003cbr\u003e\r\nor work with delicate electronics. It also means that the system\u003cbr\u003e\r\nis completely waterproof.\u003c\/span\u003e\u003c\/div\u003e\r\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe name \"Kythera\" (ky-the-ra) was derived from the Antikythera\u003cbr\u003e\r\nMechanism which is a mysterious device that was discovered\u003cbr\u003e\r\nby sponge divers off the coast of the Greek island Antikyther. \u003cbr\u003e\r\nThe mechanism was so advanced in design that scientists have\u003cbr\u003e\r\nbeen studying it for decades to discover its purpose. \u003cbr\u003e\r\nThe machine dates from around the end of the 2nd century \u003cbr\u003e\r\nB.C. and is the most sophisticated mechanism known from \u003cbr\u003e\r\nthe ancient world. \u003cbr\u003e\r\nNothing as complex is known for the next thousand years. \u003cbr\u003e\r\nThe Antikythera Mechanism is now understood to be dedicated \u003cbr\u003e\r\nto astronomical phenomena and operates as a complex\u003cbr\u003e\r\nmechanical \"computer\" which tracks the cycles of the \u003cbr\u003e\r\nSolar System.\u003c\/span\u003e\u003c\/div\u003e\r\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFor this reason we used the name Kythera for the valve \u003cbr\u003e\r\nmechanism at the core of a new line of PolarStar mechanical \u003cbr\u003e\r\nHPA systems. \u003cbr\u003e\r\nAlthough it contains very few parts and is easy to install and \u003cbr\u003e\r\nmaintain, the system incorporates a very intelligent design and \u003cbr\u003e\r\nis unlike anything else on the market. \u003cbr\u003e\r\nThe system was designed as a mechanical system from the\u003cbr\u003e\r\nground up and uses a realistic trigger mechanism which can be \u003cbr\u003e\r\napplied to single-shot, semi-automatic and fully-automatic systems.\u003c\/span\u003e\u003c\/div\u003e\r\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\r\n\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\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eSo, what makes the Kythera so unique?\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eREALISTIC TRIGGER:\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhat sets this system apart from other mechanical systems is the \u003cbr\u003e\r\ndesign of its trigger. \u003cbr\u003e\r\nThe trigger mechanism is designed to replicate the function,\u003cbr\u003e\r\nweight and feel of a real single-action firearm trigger.\u003cbr\u003e\r\nIt feels real because it is real. \u003cbr\u003e\r\nThe hardened alloy steel sears catch and release the stainless \u003cbr\u003e\r\nsteel spool valve in the same way the sears of a real firearm catch \u003cbr\u003e\r\nand release the hammer or striker. \u003cbr\u003e\r\nThis gives the Kythera trigger the distinct break and reset you \u003cbr\u003e\r\nwould expect to feel when firing a real single action firearm. \u003cbr\u003e\r\nThe trigger mechanism in the Kythera SA is also adjustable, \u003cbr\u003e\r\nallowing the user to fine tune the weight and over travel. \u003cbr\u003e\r\nAdditionally, the internal firing valve is balanced and the only \u003cbr\u003e\r\nforce applied during firing is the main spring. \u003cbr\u003e\r\nThis means the function and feel of the trigger is independent of \u003cbr\u003e\r\ninput pressure and velocity.\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eCOMPLETE SHOT CYCLE:\u003c\/span\u003e\u003cbr\u003e\r\n\u003cdiv\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe design of the Kythera SA completes a shot cycle on the \u003cbr\u003e\r\ntrigger pull. \u003cbr\u003e\r\nThis gives you the proven closed bolt performance of the Fusion \u003cbr\u003e\r\nEngine and F2 in a completely mechanical, waterproof system \u003cbr\u003e\r\nwith a realistic trigger. \u003cbr\u003e\r\nIt does not require the trigger to be released before the nozzle \u003cbr\u003e\r\nchambers the next round and the firing volume is refilled.\u003cbr\u003e\r\nThis occurs automatically and consistently every shot, with \u003cbr\u003e\r\nadjustable nozzle dwell and return speed.\u003c\/span\u003e\u003c\/div\u003e\r\n\u003cdiv\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAs the system resets and recharges immediately after firing, \u003cbr\u003e\r\nit is ready to fire again before the trigger has been released. \u003cbr\u003e\r\nThis means the system can cycle very quickly for faster follow\u003cbr\u003e\r\nup shots and a lower potential for double feeding.\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eEXTREMELY EFFICIENT AND CONSISTENT:\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe valve design of the Kythera operates without the need for \u003cbr\u003e\r\nair to control the opening or closing of the valve. \u003cbr\u003e\r\nWithout a pilot valve, 100% of the air going into the system is\u003cbr\u003e\r\nfired through the nozzle allowing it to operate very efficiently. \u003cbr\u003e\r\nIn addition to being extremely efficient, the system is also \u003cbr\u003e\r\nextremely consistent. \u003cbr\u003e\r\nThe valve is released at the same point every shot with the \u003cbr\u003e\r\nsame force applied, regardless of trigger input.\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eUNIVERSAL CHARGING CORD:\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe steel cord visible at the back of the system is attached to \u003cbr\u003e\r\na cocking mechanism for the internal spool valve.  \u003cbr\u003e\r\nAlthough the system automatically cocks the spool valve when \u003cbr\u003e\r\nthe system is pressurized, since the Kythera uses a balanced \u003cbr\u003e\r\nvalve, it is possible in certain situations that the valve could stall \u003cbr\u003e\r\nand needs to be manually cocked. \u003cbr\u003e\r\nThis typically only happens if the system is run completely out \u003cbr\u003e\r\nof air so that the pressure drops below the operating range of \u003cbr\u003e\r\nthe system. \u003cbr\u003e\r\nThe cord is designed to be either routed through the grip of the \u003cbr\u003e\r\nrifle for easy access or even possibly attached in some fashion \u003cbr\u003e\r\nto the charging handle.\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eEASY INSTALLATION\u003cbr\u003e\r\n\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera SA system installs into a standard gearbox as a \u003cbr\u003e\r\nsingle assembly and typically does not require any modification \u003cbr\u003e\r\nto the gearbox.\u003cbr\u003e\r\nThere are no separate parts to install and the only parts needing\u003cbr\u003e\r\nto be retained from the gearbox is the trigger, spring guide, \u003cbr\u003e\r\nselector and safety components.\u003c\/span\u003e\u003cbr\u003e\r\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003eWIDE VELOCITY ADJUSTMENT RANGE\u003cbr\u003e\r\n\u003c\/span\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe Kythera has a wide operating pressure range of 60psi to\u003cbr\u003e\r\n180psi which allows you to fine tune the velocity of the system\u003cbr\u003e\r\nand tailor for different requirements and applications. \u003cbr\u003e\r\nWithin this pressure range we observed a muzzle velocity of \u003cbr\u003e\r\n270 - 500fps w\/ .20g using a 6.05x380mm barrel. \u003cbr\u003e\r\nThis lets a single Kythera be used in any role ranging from CQB\u003cbr\u003e\r\nto Sniper by mainly just adjusting the input pressure from your air rig.\u003cbr\u003e\r\nDesigned from the ground up as a high performance mechanical \u003cbr\u003e\r\nHPA system, not a modification of a solenoid operated design.\u003cbr\u003e\r\nPatent pending valve mechanism provides excellent efficiency and \u003cbr\u003e\r\nconsistent velocity combined with a realistic trigger pull and reset.\u003cbr type=\"_moz\"\u003e\r\nCompletes a full shot cycle on the trigger pull alone which \u003cbr\u003e\r\ntranslates into consistent nozzle movement and rapid follow up \u003cbr\u003e\r\nshots.\u003cbr type=\"_moz\"\u003e\r\nAdjustable trigger. \u003cbr\u003e\r\nAdjustments include: Weight, length of pull and over travel.\u003cbr type=\"_moz\"\u003e\r\nAdjustable nozzle dwell\/return speed.\u003cbr type=\"_moz\"\u003e\r\nWide operating pressure range of 60 to 180psi.\u003cbr type=\"_moz\"\u003e\r\nPer info e\/o acquisto veloce senza account:\u003cbr\u003e\r\ninfo@softair-italia.it\u003c\/span\u003e\n\u003c\/div\u003e\r\n\u003c\/div\u003e","brand":"Polarstar HPA","offers":[{"title":"Default Title","offer_id":42800647176343,"sku":"10000774-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-m4-mechanical-engine-v2-by-polarstar","provider":"Softair Italia","version":"1.0","type":"link"}