{"product_id":"mesa-20ga-to-12ga-stk-adapter-rem870","title":"Mesa Tactical 20GA to 12GA Stock Adapter – Remington 870","description":"\u003cp\u003eThe Mesa Tactical 20-gauge to 12-gauge Stock Adapter allows you to install 12-gauge stocks and pistol grips on your Remington 870 20-gauge shotgun. This adapter bridges the dimensional gap between the smaller 20-gauge receiver and standard 12-gauge stock mounting systems, giving you access to a wider range of aftermarket stocks, tactical furniture, and collapsible stock options designed for the more common 12-gauge platform. It's ideal for shooters who want to customize their 20-gauge 870 with modern stock configurations or upgrade to adjustable length-of-pull systems.\u003c\/p\u003e\u003cp\u003eMachined from steel with a durable black finish, the adapter installs between the receiver and stock, maintaining a secure fit without permanent modification to the firearm. Installation is straightforward for users familiar with basic shotgun disassembly and requires no gunsmithing. The adapter maintains proper alignment and provides a solid foundation for stock mounting hardware.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Stock Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e Remington 870 20-gauge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Allows 12-gauge stocks to mount on 20-gauge receivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In (basic disassembly required)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e 93890\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mesa Tactical","offers":[{"title":"Default Title","offer_id":47938709520639,"sku":"MESA93890","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1278452.jpg?v=1766526053","url":"https:\/\/doublestackstore.com\/products\/mesa-20ga-to-12ga-stk-adapter-rem870","provider":"Double Stack Store","version":"1.0","type":"link"}