{"product_id":"fn-ar-15-5-56x45mm-nato-14-7-m4-profile-barrel-phosphate","title":"FN AR-15 5.56x45mm NATO 14.7\" M4 Profile Barrel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eFN AR-15 14.7\" M4 Profile Barrel\u003c\/strong\u003e\u003c\/span\u003e is a replacement barrel for \u003cstrong\u003eAR-15\u003c\/strong\u003e builds using a \u003cstrong\u003ecarbine-length gas system\u003c\/strong\u003e. It is chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e5.56x45mm NATO\u003c\/strong\u003e\u003c\/span\u003e and is also listed for \u003cstrong\u003e.223 Remington\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003e14.7\"\u003c\/strong\u003e barrel uses a \u003cstrong\u003ebutton-rifled 1:7 right-hand twist\u003c\/strong\u003e bore and an \u003cstrong\u003eM4 profile\u003c\/strong\u003e. Its \u003cstrong\u003eM4-style feed ramps and barrel extension\u003c\/strong\u003e support AR-15 assembly, while the threaded muzzle allows installation of a compatible muzzle device.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMade from \u003cstrong\u003echrome-moly-vanadium steel\u003c\/strong\u003e, the barrel has a \u003cstrong\u003echrome-lined bore and chamber\u003c\/strong\u003e and a matte \u003cstrong\u003eblack manganese phosphate\u003c\/strong\u003e finish. It is \u003cstrong\u003ehigh-pressure tested\u003c\/strong\u003e and \u003cstrong\u003emagnetic-particle inspected\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"FN","offers":[{"title":"Default Title","offer_id":54988442698050,"sku":"154336","price":244.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_4e9486bf-734a-4932-b5db-20cfb81ebf34.png?v=1784136701","url":"https:\/\/centerfiresystems.com\/products\/fn-ar-15-5-56x45mm-nato-14-7-m4-profile-barrel-phosphate","provider":"Centerfire Systems","version":"1.0","type":"link"}