{"product_id":"tacstar-mag-extension-rem-870-3","title":"TacStar Magazine Extension for Remington 870 – +3 Round Capacity","description":"\u003cp\u003eThe TacStar Magazine Extension for Remington 870 shotguns adds three additional rounds to your firearm's capacity, extending effective use for home defense, competition, or tactical applications. This extension replaces the factory magazine cap and extends the magazine tube forward beneath the barrel, allowing you to carry more shells without modifying the receiver or requiring a different magazine tube assembly.\u003c\/p\u003e\u003cp\u003eConstructed from durable aluminum with a black anodized finish, this extension is designed for long-term reliability and corrosion resistance. Installation requires removal of the barrel and factory magazine cap, then threading the extension onto the existing magazine tube. A new magazine spring and follower are included to ensure reliable feeding with the extended capacity. Professional installation is recommended if you are unfamiliar with shotgun disassembly and magazine tube components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Magazine Extension\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Remington 870 12-gauge shotguns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity Increase:\u003c\/strong\u003e +3 rounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 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 Professional installation recommended\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Extension tube, magazine spring, follower\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TacStar","offers":[{"title":"Default Title","offer_id":48301620363519,"sku":"TAC1082232","price":54.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/5760687.jpg?v=1773890720","url":"https:\/\/doublestackstore.com\/products\/tacstar-mag-extension-rem-870-3","provider":"Double Stack Store","version":"1.0","type":"link"}