{"product_id":"nordic-7-mxt-tube-12ga-bk-needs-nut","title":"Nordic Components +7 MXT Extension Tube – 12 Gauge (Black, Requires Magazine Nut)","description":"\u003cp\u003eThe Nordic Components +7 MXT Extension Tube adds seven rounds of 2¾-inch shell capacity to your 12-gauge shotgun, transforming it into a high-capacity platform for 3-gun competition, home defense, or extended field work. This magazine extension replaces your factory magazine tube with a longer unit that maintains reliable feeding while significantly increasing your onboard ammunition.\u003c\/p\u003e\u003cp\u003eMachined from aircraft-grade aluminum with a durable black anodized finish, the MXT tube is built to withstand hard use and corrosion. Installation requires a compatible magazine nut (sold separately) and basic gunsmithing skills—you'll need to remove the barrel and factory magazine components. Nordic Components designs these tubes with internal anti-tilt followers and precisely machined dimensions to ensure consistent feeding under recoil. Compatible with most 12-gauge shotguns that accept aftermarket magazine extensions; verify fit with your specific model before purchasing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Magazine Extension Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge:\u003c\/strong\u003e 12 Gauge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e +7 rounds (2¾-inch shells)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aircraft-grade aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Gunsmithing skills recommended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Extension tube only (magazine nut sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Nordic Components","offers":[{"title":"Default Title","offer_id":47938525528319,"sku":"NCMXT-TBS-12-7K","price":73.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1282585.jpg?v=1766518399","url":"https:\/\/doublestackstore.com\/products\/nordic-7-mxt-tube-12ga-bk-needs-nut","provider":"Double Stack Store","version":"1.0","type":"link"}