{"product_id":"ris-ii-m4a1-assembly-fde","title":"Daniel Defense RIS II M4A1 Assembly FDE – Free-Float Rail System","description":"\u003cp\u003eThe Daniel Defense RIS II M4A1 Assembly is a military-spec free-float rail system designed to the exact specifications used by USSOCOM. This quad-rail handguard provides a rigid, stable mounting platform for lights, lasers, vertical grips, and other accessories across four MIL-STD-1913 Picatinny rail surfaces. The free-float design eliminates contact with the barrel, improving accuracy potential by preventing external pressure on the barrel during shooting. Finished in Flat Dark Earth to match FDE receivers and furniture.\u003c\/p\u003e\u003cp\u003eThis complete assembly includes the rail, barrel nut, and all necessary mounting hardware for installation on AR-15\/M4 platform rifles with carbine-length gas systems. CNC-machined from 6061-T6 aluminum with a hard-coat anodized finish for durability and corrosion resistance. The RIS II features integrated quick-detach sling swivel sockets and Daniel Defense's bolt-up system for a secure, repeatable installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Free-Float Quad Rail Handguard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-15\/M4 Carbine-Length Gas Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061-T6 Aluminum, Hard-Coat Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Flat Dark Earth (FDE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRail Standard:\u003c\/strong\u003e MIL-STD-1913 Picatinny (4 Sides)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Rail Assembly, Barrel Nut, Mounting Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Accessory Mounting, Barrel Accuracy Enhancement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Daniel Defense","offers":[{"title":"Default Title","offer_id":47950817689855,"sku":"DD0100408001","price":538.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/dd0100408001.jpg?v=1766723078","url":"https:\/\/doublestackstore.com\/products\/ris-ii-m4a1-assembly-fde","provider":"Double Stack Store","version":"1.0","type":"link"}