{"product_id":"daniel-defense-m4a1-fsp-ris-ii-ar-15-12-25-free-float-handguard-black","title":"Daniel Defense M4A1 FSP RIS II AR-15 12.25\" Free-Float Handguard - Black","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eDaniel Defense M4A1 FSP RIS II Handguard\u003c\/strong\u003e\u003c\/span\u003e is a \u003cstrong\u003e12.25\" two-piece, free-floating AR-15 rail assembly\u003c\/strong\u003e designed for rifles with a \u003cstrong\u003ecarbine-length gas system\u003c\/strong\u003e. Its continuous upper rail includes an opening for a \u003cstrong\u003estandard fixed front-sight base\u003c\/strong\u003e, providing the model-specific FSP configuration without interrupting the top rail.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe handguard is machined from \u003cstrong\u003eaircraft-grade 6061-T6 aluminum\u003c\/strong\u003e and finished in \u003cstrong\u003eblack Mil-Spec Type III hard-coat anodizing\u003c\/strong\u003e. A \u003cstrong\u003ehardened steel barrel nut\u003c\/strong\u003e, \u003cstrong\u003eGrade 8 military-specification fasteners\u003c\/strong\u003e, and Daniel Defense's \u003cstrong\u003esix-bolt Bolt-Up mounting system\u003c\/strong\u003e secure the assembly to the upper receiver. The rail measures \u003cstrong\u003e2.23\" wide\u003c\/strong\u003e by \u003cstrong\u003e2.25\" high\u003c\/strong\u003e, has a \u003cstrong\u003e1.15\" inside diameter\u003c\/strong\u003e, and weighs \u003cstrong\u003e17.1 oz\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDeveloped for the \u003cstrong\u003eUSSOCOM SOPMOD II program\u003c\/strong\u003e, the RIS II uses \u003cstrong\u003eMil-Spec 1913 Picatinny rails\u003c\/strong\u003e for accessory mounting. Its removable lower rail section permits \u003cstrong\u003eM203 attachment\u003c\/strong\u003e without separate free-float components or special mounting tools. This model does not have an integrated sling-swivel attachment point.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis standalone handguard assembly is offered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew condition\u003c\/strong\u003e\u003c\/span\u003e with a \u003cstrong\u003eblack anodized finish\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Daniel Defense","offers":[{"title":"Default Title","offer_id":54985347236162,"sku":"112159","price":490.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_905d4064-dd3e-4649-a901-c5d85af0627b.png?v=1784057401","url":"https:\/\/centerfiresystems.com\/products\/daniel-defense-m4a1-fsp-ris-ii-ar-15-12-25-free-float-handguard-black","provider":"Centerfire Systems","version":"1.0","type":"link"}