{"product_id":"faxon-firearms-duty-series-5-56-nato-12-5-1-7-twist-4150-cmv-medium-taper-ar-15-barrel-chrome-mag-phosphate","title":"Faxon Firearms Duty Series 5.56 NATO 12.5\" 1:7 Twist 4150 CMV Medium Taper AR-15 Barrel - Chrome Mag Phosphate","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eFaxon Firearms Duty Series\u003c\/span\u003e\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e5.56 NATO\u003c\/span\u003e\u003c\/strong\u003e barrel is purpose-built for AR-15 platforms that demand dependable performance and long service life. Machined from \u003cstrong\u003e4150 CMV\u003c\/strong\u003e steel, button rifled, and finished in \u003cstrong\u003eChrome Mag Phosphate\u003c\/strong\u003e, this \u003cstrong\u003e12.5\"\u003c\/strong\u003e carbine-length barrel delivers the durability and accuracy serious shooters expect from the Duty line.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel features a \u003cstrong\u003e1:7\"\u003c\/strong\u003e twist rate optimized to stabilize a wide range of \u003cstrong\u003e5.56 NATO\u003c\/strong\u003e bullet weights. The bore and chamber are \u003cstrong\u003echrome-lined\u003c\/strong\u003e for improved corrosion resistance and extended service life under high round counts, while the \u003cstrong\u003eMedium Taper\u003c\/strong\u003e profile trims weight without sacrificing barrel rigidity or heat management. A \u003cstrong\u003ecarbine-length\u003c\/strong\u003e gas system keeps the action cycling reliably across a broad spectrum of ammunition and suppressor setups.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eEvery Duty Series barrel is fully machined, stress relieved, and air gauged in-house at \u003cstrong\u003eFaxon Firearms\u003c\/strong\u003e in the \u003cstrong\u003eUSA\u003c\/strong\u003e to confirm concentricity and bore uniformity before it ships. This drop-in replacement fits any standard AR-15 upper. Whether you are building a compact defensive carbine, a training rig, or other short-barrel AR-15 build, this barrel delivers the proven Duty Series pedigree in a short, handy package.\u003c\/span\u003e\u003c\/p\u003e","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":55044642832706,"sku":"173808","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_1509f544-8233-416b-876a-edd2b1e4b67e.png?v=1784695688","url":"https:\/\/centerfiresystems.com\/products\/faxon-firearms-duty-series-5-56-nato-12-5-1-7-twist-4150-cmv-medium-taper-ar-15-barrel-chrome-mag-phosphate","provider":"Centerfire Systems","version":"1.0","type":"link"}