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SCAR-L\u003c\/td\u003e\n\u003ctd\u003e1.1345\u003c\/td\u003e\n\u003ctd\u003e1.987\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eVFC SCAR-H\u003c\/td\u003e\n\u003ctd\u003e1.5075\u003c\/td\u003e\n\u003ctd\u003e2.36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003eEF\/S\u0026amp;T TAR-21 COMP\u003c\/td\u003e\n\u003ctd\u003e0.8765\u003c\/td\u003e\n\u003ctd\u003e1.729\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eEF ARX160 ELITE\u003c\/td\u003e\n\u003ctd\u003e1.4865\u003c\/td\u003e\n\u003ctd\u003e2.339\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eCA KAC LMG, VFC MP5 A\/SD\u003c\/td\u003e\n\u003ctd\u003e0.7475\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003eLCT AK-47\/74\/M, LCT VSS\/AS VAL\u003c\/td\u003e\n\u003ctd\u003e0.8355\u003c\/td\u003e\n\u003ctd\u003e1.688\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003eA\u0026amp;K MASADA\/ACR\u003c\/td\u003e\n\u003ctd\u003e1.3465\u003c\/td\u003e\n\u003ctd\u003e2.199\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003eKA CZ 805 BREN, CG M249 FEATHERWEIGHT, A\u0026amp;K M60\u003c\/td\u003e\n\u003ctd\u003e1.3895\u003c\/td\u003e\n\u003ctd\u003e2.242\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eEF\/ARES G36KV\/CV, JG G36\u003c\/td\u003e\n\u003ctd\u003e1.0545\u003c\/td\u003e\n\u003ctd\u003e1.907\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003eEF\/S\u0026amp;T 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A standard MP5, for example, could require any of 4 different nozzle lengths depending on manufacturer.\u003c\/p\u003e\n\n\u003cp\u003eOnce you determine your replica's nozzle number, that number is universal across all engines using the numbered system — a #11 JACK™ nozzle will also be a #11 Kythera™ or F2™ nozzle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Kythera models built for a specific replica (e.g. A\u0026amp;K\/JG SR-25) with a non-standard cylinder use a nozzle with a \"K\" prefix, since the universal numbering doesn't apply to non-standard cylinders. These \"K\" nozzles share the same design and profile as standard numbered nozzles and are cross-compatible. 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F2™ Offset Nozzle","description":"\u003cp\u003ePolarStar assigns numbers to nozzles instead of using the rifle model, since nozzle length varies between manufacturers of the same gun model and gearbox shell.\u003c\/p\u003e\n\u003cp\u003eThe make and model shown below reflects the rifle the nozzle length originated from — this does not mean it is the only rifle the nozzle is compatible with.\u003c\/p\u003e\n\n\u003ch4\u003eCompatibility Chart\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e#\u003c\/th\u003e\n\u003cth\u003eOriginal Model\u003c\/th\u003e\n\u003cth\u003eTip (in)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-1\u003c\/td\u003e\n\u003ctd\u003eM14, G\u0026amp;G\u003c\/td\u003e\n\u003ctd\u003e0.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-2\u003c\/td\u003e\n\u003ctd\u003eTM\/CA P90\u003c\/td\u003e\n\u003ctd\u003e0.814\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-5\u003c\/td\u003e\n\u003ctd\u003eM14, CYMA\u003c\/td\u003e\n\u003ctd\u003e0.869\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-6\u003c\/td\u003e\n\u003ctd\u003eSVD, CYMA\u003c\/td\u003e\n\u003ctd\u003e0.601\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-8\u003c\/td\u003e\n\u003ctd\u003eSVD, Real Sword\u003c\/td\u003e\n\u003ctd\u003e0.648\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-10\u003c\/td\u003e\n\u003ctd\u003eSVD, A\u0026amp;K\u003c\/td\u003e\n\u003ctd\u003e0.759\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-12\u003c\/td\u003e\n\u003ctd\u003eM14, TM\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"PolarStar","offers":[{"title":"#O-1","offer_id":45868774817826,"sku":"10000407","price":42.5,"currency_code":"USD","in_stock":true},{"title":"#O-5","offer_id":45868774850594,"sku":"10000408","price":42.5,"currency_code":"USD","in_stock":true},{"title":"#O-6","offer_id":45868774883362,"sku":"10000409","price":42.5,"currency_code":"USD","in_stock":true},{"title":"#O-8","offer_id":45868774916130,"sku":"10000410","price":42.5,"currency_code":"USD","in_stock":true},{"title":"#O-10","offer_id":45868774948898,"sku":"10000411","price":42.5,"currency_code":"USD","in_stock":true},{"title":"#O-12","offer_id":45868774981666,"sku":"10000412","price":42.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_Jun_30_2026_12_43_58_PM_4.png?v=1782930914"},{"product_id":"polarstar-fusion-engine-poppet","title":"PolarStar Fusion Engine™ Poppet","description":"\u003cp\u003eThe Poppet Valve controls air flow through the Fusion Engine™. Available in different levels of restriction, the poppet you choose determines whether your build leans toward higher air efficiency or higher velocity.\u003c\/p\u003e\n\n\u003ch4\u003eStandard – Black\u003c\/h4\u003e\n\u003cp\u003eThe Black Poppet is the highest flowing valve available for the Fusion Engine™ and is the valve the engine ships with standard. It gives you the widest range of velocity adjustment by simply swapping nozzles to shift your rifle's velocity range up or down in large increments.\u003c\/p\u003e\n\n\u003ch4\u003eLow-Flow – Red\u003c\/h4\u003e\n\u003cp\u003eThe Red Low Flow Poppet is the mid-level restriction valve, offering a good blend of power and efficiency.\u003c\/p\u003e\n\n\u003ch4\u003eLow-Flow – Gold\u003c\/h4\u003e\n\u003cp\u003eThe Gold Low Flow Poppet is the most restrictive of the Fusion Engine™ poppet valves, maximizing air efficiency.\u003c\/p\u003e\n\u003cp\u003eEach poppet includes the retainer O-ring.\u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Standard – Black (O-Ring incl.)","offer_id":45868780519458,"sku":"10000279","price":34.5,"currency_code":"USD","in_stock":true},{"title":"Low-Flow – Red (O-Ring incl.)","offer_id":45868780552226,"sku":"10000280","price":36.0,"currency_code":"USD","in_stock":true},{"title":"Low-Flow – Gold (O-Ring incl.)","offer_id":45868780584994,"sku":"10000281","price":36.0,"currency_code":"USD","in_stock":true},{"title":"Amped – Purple (Low Flow)","offer_id":45868780617762,"sku":"AMPED-LF-Poppet","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_Jun_30_2026_12_43_58_PM_6.png?v=1782930912"},{"product_id":"polarstar-f2-poppet","title":"PolarStar F2™ Poppet","description":"\u003cp\u003eThe F2™ poppet valve is available in two levels — Red and Gold — letting you tune the system for your specific build.\u003c\/p\u003e\n\n\u003ch4\u003eRed – Standard\u003c\/h4\u003e\n\u003cp\u003eThe Red valve is the standard poppet that ships with the F2™ and provides the maximum amount of airflow through the system. Well suited for builds operating at field velocity limits.\u003c\/p\u003e\n\n\u003ch4\u003eGold – Low Flow\u003c\/h4\u003e\n\u003cp\u003eThe optional Gold valve expands the F2's™ tuning capabilities further. Swapping the standard Red poppet for the Low Flow Gold poppet shifts the velocity adjustment window down, letting the system run at a higher pressure while retaining lower velocity. This is especially useful for longer-barreled rifles that need a lower velocity than the F2's™ normal pressure range allows, or to maintain reliable feeding with the heavy spring and heavy BBs without exceeding the velocity limit.\u003c\/p\u003e\n\u003cp\u003ePerformance was benchmarked across a range of pressures and BB weights using a 6.05×380mm barrel.\u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Red – Standard","offer_id":45868781043746,"sku":"10000289","price":17.0,"currency_code":"USD","in_stock":true},{"title":"Gold – Low Flow","offer_id":45868781076514,"sku":"10000361","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_Jun_30_2026_12_43_59_PM_8.png?v=1782930912"},{"product_id":"polarstar-nozzle-poppet-spring","title":"PolarStar Nozzle \/ Poppet Spring – FE\/F2","description":"","brand":"PolarStar","offers":[{"title":"Heavy – Standard","offer_id":45868783829026,"sku":"10000388","price":0.0,"currency_code":"USD","in_stock":true},{"title":"Light","offer_id":45868783861794,"sku":"10000389","price":0.0,"currency_code":"USD","in_stock":true}]}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/collections\/ChatGPT_Image_May_15_2026_10_53_04_PM_7-9388440.png?v=1778953573","url":"https:\/\/www.katechairsoft.com\/collections\/nozzles.oembed","provider":"KA Tech Airsoft ","version":"1.0","type":"link"}