{"product_id":"polar-star-jack-engine","title":"PolarStar Jack  Airsoft HPA Engine - V2","description":"\u003cp\u003e\u003cspan\u003eThe JACK™ (for version 2 Airsoft gear boxes) was designed to answer the demand for an affordable, high performance HPA (High Pressure Air) conversion for AEG's. The system is a drop-in cylinder replacement that is universally compatible with a wide range of gearbox versions that have center-line nozzles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSimilar to its sister products, the JACK™ replaces the original gearbox components with a programmable pneumatic system allowing for higher performance and greater reliability over a gear driven system. Although economically priced, the JACK™ still retains the same performance and quality you have come to expect from PolarStar products.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe JACK™ has only one moving part, the nozzle, which acts as its own poppet valve. Similar to the Fusion Engine™ and F2™ poppet, the nozzle is only piloted by the solenoid to open air flow through the poppet with none of the firing air coming from the solenoid itself. This design lets the JACK™ send a higher flow of air down the barrel than systems that only use a solenoid as the firing valve.\u003c\/span\u003e\u003c\/p\u003e","brand":"Airsoft HPA","offers":[{"title":"Default Title","offer_id":52779998216508,"sku":"AS-hpa-ps3","price":341.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/4488\/1980\/files\/jack.webp?v=1779384912","url":"https:\/\/fun-on-the-run-paintball.myshopify.com\/products\/polar-star-jack-engine","provider":"Fun On The Run Paintball","version":"1.0","type":"link"}