{"product_id":"ruger-4b30-scope-ring-30mm-medium-blued-carbon-steel-single-ring","title":"Ruger 4B30 Scope Ring 30mm Medium Blued Carbon Steel - Single Ring","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eRuger 4B30\u003c\/span\u003e\u003c\/strong\u003e is a medium-height \u003cstrong\u003escope ring\u003c\/strong\u003e machined from \u003cstrong\u003ecarbon steel\u003c\/strong\u003e with a polished \u003cstrong\u003eblued\u003c\/strong\u003e finish. Designed to clamp a \u003cstrong\u003e30mm\u003c\/strong\u003e main tube on a scope with an objective diameter of up to \u003cstrong\u003e42mm\u003c\/strong\u003e, this is a single ring built to Ruger's standard for rifles equipped with factory-integral receiver bases.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe 4B30 is intended for \u003cstrong\u003eRuger rifles\u003c\/strong\u003e that come from the factory with integral bases machined into the receiver, including the \u003cstrong\u003eM77\u003c\/strong\u003e, \u003cstrong\u003eHawkeye\u003c\/strong\u003e, and \u003cstrong\u003eAfrican\u003c\/strong\u003e series. The medium height provides enough clearance for standard 30mm main-tube scopes with up to a 42mm objective while keeping a comfortable cheek weld on the stock. The blued carbon steel construction matches the traditional finish on Ruger centerfire rifles and is built to hold zero under field recoil.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSold individually as a single ring, the 4B30 is the correct replacement or build piece when you need to add or swap a top ring in an existing Ruger setup. Made in the \u003cstrong\u003eUSA\u003c\/strong\u003e to Ruger's factory specifications.\u003c\/span\u003e\u003c\/p\u003e","brand":"Ruger","offers":[{"title":"Default Title","offer_id":55336443511106,"sku":"R90273","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_166de526-e93b-49da-8a20-7c3d972f2d04.jpg?v=1785171979","url":"https:\/\/centerfiresystems.com\/products\/ruger-4b30-scope-ring-30mm-medium-blued-carbon-steel-single-ring","provider":"Centerfire Systems","version":"1.0","type":"link"}