{"product_id":"caliber-conversion-kit-for-gk1","title":"Caliber Conversion Kit for Huben GK1 Air Pistol","description":"\u003cp\u003eThis kit will allow you to change the caliber of your GK1. Move up from .177 or down from .22 according to your needs! The kit includes the entire barrel\/mag assembly, which are the only parts that differ between calibers.\u003c\/p\u003e","brand":"HUBEN","offers":[{"title":".25 (6.35 mm)","offer_id":51806531551511,"sku":null,"price":649.0,"currency_code":"GBP","in_stock":true},{"title":".22 (5.5 mm)","offer_id":51806531584279,"sku":null,"price":649.0,"currency_code":"GBP","in_stock":true},{"title":".177 (4.5 mm)","offer_id":51806531617047,"sku":null,"price":649.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0942\/2848\/0279\/files\/Huben_caliber_conversion_kit_1.00.jpg?v=1768978668","url":"https:\/\/www.hubenairguns.co.uk\/products\/caliber-conversion-kit-for-gk1","provider":"Huben Shop UK","version":"1.0","type":"link"}