{"product_id":"mac-stuby-ar8-5","title":"KA Tech MAC Polarstar Stuby AR8-5 HPA M4","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis is a KA Tech Mac rifle, where style meets performance. Its a hand built and custom tuned HPA rifle made to dominate the CQB Field. Anything on the rifle can be customized beyond the preset options. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThis rifle is equipped with top of the line internals giving you the ultimate advantage over the competition in terms of accuracy, speed, and customizability. With a full CNC aluminum and carbon fiber body its durable, lightweight, and stylish \u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e*Our rifles are fully customized, individually manufactured, precision-tuned, coated, and assembled to order. Due to the level of craftsmanship and detail involved, production and assembly of your hand built rifle can take \u003c\/span\u003e\u003cspan\u003eup to\u003c\/span\u003e\u003cspan\u003e 45 working days\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eif we don't have parts on hand\u003c\/span\u003e\u003cspan\u003e.  \u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTech Specifications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFPS: \u003c\/span\u003e\u003cspan\u003e270-380 adjustable \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eInner Barrel Length\u003c\/span\u003e\u003cspan\u003e: mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBarrel Thread Spec\u003c\/span\u003e\u003cspan\u003e: -14mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMagazine\u003c\/span\u003e\u003cspan\u003e: M4 Style Magazines\u003c\/span\u003e\u003cspan\u003e *Not Included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eHPA Engine\u003c\/span\u003e\u003cspan\u003e: Polarstar F2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFiring Modes\u003c\/span\u003e\u003cspan\u003e: Semi\/Full-Auto\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBattery\u003c\/span\u003e\u003cspan\u003e: HPA 7.4v JST Mini Lipo \u003c\/span\u003e\u003cspan\u003e*Not Included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIncluded Build Parts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAR8 type 5 lower \u003c\/p\u003e\n\u003cp\u003eAR8 type 1-5 upper or Airtac CRBN HPA\/AEG Upper 155mm\u003c\/p\u003e\n\u003cp\u003eStuby Stock\u003c\/p\u003e\n\u003cp\u003eStippled Pistol Grip\u003c\/p\u003e\n\u003cp\u003ePolarstar F2\u003c\/p\u003e\n\u003cp\u003eRetro Arms hopup \u003c\/p\u003e\n\u003cp\u003eMaple Leaf macron pink\u003c\/p\u003e\n\u003cp\u003eAirtac 6.02 155mm inner barrel \u003c\/p\u003e\n\u003cp\u003eRetro Arms speed trigger \u003c\/p\u003e\n\u003cp\u003eBlack Leaf speed trigger board (clicky trigger)\u003c\/p\u003e\n\u003cp\u003eRetro Arms ambi magazine release \u003c\/p\u003e\n\u003cp\u003eRetro Arms selector switch \u003c\/p\u003e\n\u003cp\u003eAmped IGL \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor this rifle, you can independently customize the color, pattern\/design, material, or size of the following: \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eUpper Receiver \u003c\/span\u003e\u003cspan\u003e[9 types of Skelitizations]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eLower Receiver \u003c\/span\u003e\u003cspan\u003e[9 types of Skelitizations]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBarrel \u003c\/span\u003e\u003cspan\u003e[Aluminum, Carbon] [5.0-14.5 inches]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eStock \u003c\/span\u003e\u003cspan\u003e[Stubby, Carbon, Foldable] [5.0-9.0 inches]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGrip \u003c\/span\u003e\u003cspan\u003e[Polymer]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eAir Tank Grip \u003c\/span\u003e\u003cspan\u003e[Monk, MAC, AGS (nylon) | all for Polarstar mr2 or Wolverine cat 5]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eGearbox [\u003c\/span\u003e\u003cspan\u003eFull or HPA (based on supply or requirement of the rifle)] \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eMagazine Release\u003c\/span\u003e\u003cspan\u003e [Maxx, Retro Arms, Angel Customs]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eSelector Switch \u003c\/span\u003e\u003cspan\u003e[Retro Arms, Angel Customs]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTrigger \u003c\/span\u003e\u003cspan\u003e[Maxx, Retro Arms, Speed, Airtac]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eEngine \u003c\/span\u003e\u003cspan\u003e[PolarStar: Kythera, Jack, F2, Fusion Engine]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eHopUp\u003c\/span\u003e\u003cspan\u003e [RetroArms, Maxx, ZCI, Prowin]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eInner-Barrel \u003c\/span\u003e\u003cspan\u003e[Airtac or ZCI based on inventory]\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eBucking \u003c\/span\u003e\u003cspan\u003e[Maple leaf based on rifle requirement] \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e*We recommend NOT making modifications to bucking and inner-barrel as these are specifically paired and selected for the engine and barrel length of your rifle.\u003c\/span\u003e\u003c\/p\u003e","brand":"KA Tech Airsoft","offers":[{"title":"Purple \/ Kythera \/ Standard Outer Barrel 6\"","offer_id":44058287865890,"sku":null,"price":1350.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Kythera \/ Standard Outer Barrel 7\"","offer_id":45383277117474,"sku":null,"price":1350.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Kythera \/ Standard Outer Barrel 8\"","offer_id":45383277150242,"sku":null,"price":1350.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Kythera \/ Standard Outer Barrel 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6\"","offer_id":44058287898658,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Standard Outer Barrel 7\"","offer_id":45383277412386,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Standard Outer Barrel 8\"","offer_id":45383277445154,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Standard Outer Barrel 9\"","offer_id":45383277477922,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Standard Outer Barrel 10\"","offer_id":45383277510690,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Speed Cannon 6\"","offer_id":45383277543458,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Speed Cannon 7\"","offer_id":45383277576226,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Speed Cannon 8\"","offer_id":45383277608994,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Speed Cannon 9\"","offer_id":45383277641762,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Jack \/ Speed Cannon 10\"","offer_id":45383277674530,"sku":null,"price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Standard Outer Barrel 6\"","offer_id":44058287931426,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Standard Outer Barrel 7\"","offer_id":45383277707298,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Standard Outer Barrel 8\"","offer_id":45383277740066,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Standard Outer Barrel 9\"","offer_id":45383277772834,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Standard Outer Barrel 10\"","offer_id":45383277805602,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Speed Cannon 6\"","offer_id":45383277838370,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Speed Cannon 7\"","offer_id":45383277871138,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Speed Cannon 8\"","offer_id":45383277903906,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Speed Cannon 9\"","offer_id":45383277936674,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ F2 \/ Speed Cannon 10\"","offer_id":45383277969442,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Standard Outer Barrel 6\"","offer_id":44058287964194,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Standard Outer Barrel 7\"","offer_id":45383278002210,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Standard Outer Barrel 8\"","offer_id":45383278034978,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Standard Outer Barrel 9\"","offer_id":45383278067746,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Standard Outer Barrel 10\"","offer_id":45383278100514,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Speed Cannon 6\"","offer_id":45383278133282,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Speed Cannon 7\"","offer_id":45383278166050,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Speed Cannon 8\"","offer_id":45383278198818,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Speed Cannon 9\"","offer_id":45383278231586,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true},{"title":"Purple \/ Fusion Engine \/ Speed Cannon 10\"","offer_id":45383278264354,"sku":null,"price":1500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_May_15_2026_07_56_13_PM_1.png?v=1778954112","url":"https:\/\/www.katechairsoft.com\/products\/mac-stuby-ar8-5","provider":"KA Tech Airsoft ","version":"1.0","type":"link"}