{"product_id":"polarstar-modular-regulator-system","title":"PolarStar Modular Regulator System (MRS)","description":"\u003cp\u003eThe PolarStar MRS™ (Modular Regulator System) threads directly onto your HPA tank, eliminating the need for a separate UFA and keeping your air rig profile to a minimum — all in a package just 3 inches tall. Its integral on\/off valve lets you depressurize the system before unscrewing it from the tank, protecting tank threads and o-rings from wear.\u003c\/p\u003e\n\n\u003cp\u003eAn oversized 4mm piston bore delivers extremely high flow and refresh rate even at only 40psi, giving you consistent, high-performance output across the pressure range.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable output pressure 40–145psi\u003c\/li\u003e\n\u003cli\u003eOptional High Pressure Spring boosts maximum output to ~200psi\u003c\/li\u003e\n\u003cli\u003eIntegral on\/off valve — depressurize before tank removal\u003c\/li\u003e\n\u003cli\u003eOversized 4mm piston bore for high flow at any pressure\u003c\/li\u003e\n\u003cli\u003eIntegral tournament lock — secured with a standard zip tie\u003c\/li\u003e\n\u003cli\u003eCompatible with standard HPA and SLP tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMin Output Pressure: 40 PSI\u003c\/li\u003e\n\u003cli\u003eMax Output Pressure: 145 PSI (~200 PSI with HP Spring, p\/n 10000556)\u003c\/li\u003e\n\u003cli\u003eMax Input Pressure: 900 PSI\u003c\/li\u003e\n\u003cli\u003eOutputs: 4x 1\/8 NPT\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 Year Limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eHP Spring not included.\u003c\/em\u003e\u003c\/p\u003e","brand":"PolarStar","offers":[{"title":"Regulator Only","offer_id":45868776194082,"sku":"10000104","price":146.75,"currency_code":"USD","in_stock":true},{"title":"w\/ 42\" Braided Air Line","offer_id":45868776226850,"sku":"10000547","price":182.5,"currency_code":"USD","in_stock":true},{"title":"w\/ 36\" Braided Air Line","offer_id":45868776259618,"sku":"10000548","price":181.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/5355\/8050\/files\/ChatGPT_Image_Jun_19_2026_10_25_47_PM_1.png?v=1781933177","url":"https:\/\/www.katechairsoft.com\/products\/polarstar-modular-regulator-system","provider":"KA Tech Airsoft ","version":"1.0","type":"link"}