{"product_id":"fn-ar-15-5-56x45mm-nato-16-button-rifled-barrel","title":"FN AR-15 5.56x45mm NATO 16\" Button-Rifled Barrel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eFN AR-15 16\" Button-Rifled Barrel\u003c\/strong\u003e\u003c\/span\u003e is a standalone replacement barrel for an \u003cstrong\u003eAR-15\u003c\/strong\u003e carbine-length build. It is chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e5.56x45mm NATO\u003c\/strong\u003e\u003c\/span\u003e and uses an \u003cstrong\u003eM16\/government profile\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFN manufactures this \u003cstrong\u003e16\" barrel\u003c\/strong\u003e from \u003cstrong\u003eU.S.-sourced chrome-moly-vanadium steel\u003c\/strong\u003e made to \u003cstrong\u003eMil-B-11595E\u003c\/strong\u003e specifications. Its \u003cstrong\u003ebutton-rifled\u003c\/strong\u003e bore has a \u003cstrong\u003e1:7 twist rate\u003c\/strong\u003e, and the barrel is configured for a \u003cstrong\u003ecarbine-length gas system\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003ebore and chamber are chrome lined\u003c\/strong\u003e. The assembly also incorporates \u003cstrong\u003eM4-style feed ramps\u003c\/strong\u003e and a \u003cstrong\u003ebarrel extension\u003c\/strong\u003e. The barrel is \u003cstrong\u003ehigh-pressure tested\u003c\/strong\u003e and \u003cstrong\u003emagnetic-particle inspected\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA \u003cstrong\u003ematte black manganese-phosphate finish\u003c\/strong\u003e covers the exterior. The barrel has a \u003cstrong\u003ethreaded muzzle\u003c\/strong\u003e, a non-fluted profile and no sights. A muzzle thread pitch and included muzzle device are not established.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis standalone barrel is offered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew Condition\u003c\/strong\u003e\u003c\/span\u003e. It is a barrel component, not a complete firearm or serialized receiver.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eDISCLAIMER:\u003c\/span\u003e\u003c\/strong\u003e Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit \u003ca href=\"\/shipping-restrictions\/\" target=\"_blank\"\u003eour shipping restrictions page\u003c\/a\u003e to review all applicable restrictions for your state. Subject to change.\u003c\/span\u003e\u003c\/p\u003e","brand":"FN","offers":[{"title":"Default Title","offer_id":54988333580610,"sku":"154332","price":244.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_ada55491-dab4-4259-be62-8fe19da29c0e.png?v=1784131863","url":"https:\/\/centerfiresystems.com\/products\/fn-ar-15-5-56x45mm-nato-16-button-rifled-barrel","provider":"Centerfire Systems","version":"1.0","type":"link"}