{"product_id":"b5-srk-1660-srk-extention-kit-blk","title":"B5 SRK-1660   SRK EXTENTION KIT                BLK","description":"\u003cp\u003eB5 SRK-1660 SRK EXTENTION KIT BLK\n\u003cbr\u003eThe Sierra K Receiver Extension Kit is the proprietary mounting system for the Sierra K Buttstock. It consists of a reduced-length, mil-spec diameter, 7075 aluminum, 5-position receiver extension, a short heavy buffer (3.5 oz), extra power spring, castle nut, and quick disconnect end plate.\u003c\/p\u003e","brand":"B5 Systems","offers":[{"title":"Default Title","offer_id":53855662801214,"sku":"180993","price":128.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2853\/6638\/files\/5568522.jpg?v=1783046575","url":"https:\/\/wasatchbackcustoms.com\/products\/b5-srk-1660-srk-extention-kit-blk","provider":"Wasatch Back Customs","version":"1.0","type":"link"}