{"product_id":"fully-built-umbrella-armory-polarstar-fusion-engine-carbon-fiber-hpa-m4","title":"Fully Built Umbrella Armory PolarStar Fusion Engine Carbon Fiber HPA M4","description":"\u003cp\u003eA full metal rifle with completely overhauled internals: a \u003cstrong\u003ePolarStar Fusion Engine\u003c\/strong\u003e, Maxx hop-up unit, Maple Leaf bucking and a tight-bore inner barrel, plus a blade speed trigger and a filtered quick-disconnect airline.\u003c\/p\u003e\u003cp\u003eThis one also carries a \u003cstrong\u003ecarbon fibre M-LOK Lancer handguard\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eComes with all attachments shown.\u003c\/p\u003e","brand":"KA Tech Airsoft ","offers":[{"title":"Default Title","offer_id":48788579352610,"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_Sep_18_2026_06_07_43_PM_5.png?v=1789808286","url":"https:\/\/www.katechairsoft.com\/products\/fully-built-umbrella-armory-polarstar-fusion-engine-carbon-fiber-hpa-m4","provider":"KA Tech Airsoft ","version":"1.0","type":"link"}