{"product_id":"prometheus-m4a1-363mm-barrel","title":"Prometheus M4 6.03mm EG 363mm Barrel","description":"\u003cp\u003ePrometheus M4A1 6.03mm EG 363mm Barrel. Fits all airsoft M4 standard variants. If you have a M4 carbine, and you're not sure which tightbore size you want, you can't go wrong with this one! A great upgrade for your airsoft gun.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe EG series is a 6.03mm inner barrel diameter.  May increase your FPS and accuracy after installation.  One of the most popular and best made barrels for airsoft.  Made in Japan.\u003c\/span\u003e\u003c\/p\u003e","brand":"ASA","offers":[{"title":"Default","offer_id":17128894398554,"sku":"6dd07dab-a793-46b8-9d2d-2d396cd7ec8b","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0063\/4526\/1146\/products\/58009-2.jpg?v=1571718134","url":"https:\/\/airsoftgrounds.myshopify.com\/products\/prometheus-m4a1-363mm-barrel","provider":"Airsoft Grounds","version":"1.0","type":"link"}