{"product_id":"polarstar-f2-nozzle","title":"PolarStar F2™ Nozzle","description":"\u003cp\u003eFor cylinder conversion systems, PolarStar assigns numbers to nozzles instead of using the rifle model, since nozzle length varies between manufacturers of the same gun model. 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 (excluding some model-specific Kythera™ systems).\u003c\/p\u003e\n\n\u003ch4\u003eFormula for Custom Measurement\u003c\/h4\u003e\n\u003cp\u003eIf your gun isn't in the compatibility database, measure your gearbox using calipers in thousandths of an inch (0.001\") and calculate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eF2 Centerline Nozzles: TIP = F + B - (A\/2) + .2925\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe measured tip length should be within ±0.010\" of an existing nozzle to be compatible. Contact us with your measurements for custom orders.\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\u003eMost Commonly Used With\u003c\/th\u003e\n\u003cth\u003eTip (in)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eTM M4\/M16, A\u0026amp;K PKM, TM MP5 A\/SD, ICS MP5 A\/SD, G\u0026amp;G KAC SR-25E2\u003c\/td\u003e\n\u003ctd\u003e1.205\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eCYMA AK, CYMA MP5 A\/SD, G\u0026amp;G UMP\u003c\/td\u003e\n\u003ctd\u003e1.242\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eCA M249\/MK46, A\u0026amp;K M249\/MK46\u003c\/td\u003e\n\u003ctd\u003e1.19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eG\u0026amp;G GR-25\u003c\/td\u003e\n\u003ctd\u003e1.8305\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eA\u0026amp;K SR-25, JG SR-25, ICS SIG 550\/551\/552\u003c\/td\u003e\n\u003ctd\u003e1.3435\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eKA FAL, TM MP5K, A\u0026amp;K M240\u003c\/td\u003e\n\u003ctd\u003e1.2745\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003ePTS MASADA, CA SCAR-L\u003c\/td\u003e\n\u003ctd\u003e1.514\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\u003e1.8875\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\u003e1.2565\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\u003e1.866\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\u003e1.127\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\u003e1.2155\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\u003e1.7265\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\u003e1.769\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\u003e1.434\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003eEF\/S\u0026amp;T G36C\u003c\/td\u003e\n\u003ctd\u003e1.421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003eCA AUG\u003c\/td\u003e\n\u003ctd\u003e1.384\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003eG\u0026amp;G MP5 A\/SD\u003c\/td\u003e\n\u003ctd\u003e1.175\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003eVFC\/ECHO1 XCR\u003c\/td\u003e\n\u003ctd\u003e1.6065\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003eCA G36, CYMA SR-25\u003c\/td\u003e\n\u003ctd\u003e1.406\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003ctd\u003eElite Force\/CYMA MP5K, CA 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