{"product_id":"faxon-firearms-duty-series-ar-15-5-56-nato-11-5-gunner-barrel-black-nitride","title":"Faxon Firearms Duty Series AR-15 5.56 NATO 11.5\" Gunner Barrel - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eFaxon Firearms Duty Series Gunner Barrel\u003c\/strong\u003e\u003c\/span\u003e is a standalone \u003cstrong\u003e11.5\" AR-15 barrel\u003c\/strong\u003e chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e5.56 NATO\u003c\/strong\u003e\u003c\/span\u003e. Its compact format and lightweight Gunner profile are designed with sustained suppressor use in mind, while the installed \u003cstrong\u003eM4 barrel extension\u003c\/strong\u003e provides compatibility with standard \u003cstrong\u003eAR-15 upper receivers and bolts\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFaxon machines this barrel from certified \u003cstrong\u003e4150 chrome-moly-vanadium steel\u003c\/strong\u003e. The \u003cstrong\u003eGunner profile\u003c\/strong\u003e combines a Government-style taper behind the gas block with a straight forward section ending at a full muzzle shoulder. It is \u003cstrong\u003ebutton rifled\u003c\/strong\u003e with a \u003cstrong\u003e1:8 twist\u003c\/strong\u003e, then treated with a \u003cstrong\u003eblack nitride finish inside and outside\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe barrel uses a \u003cstrong\u003emid-length direct gas system\u003c\/strong\u003e with a \u003cstrong\u003e.625\" gas-block diameter\u003c\/strong\u003e and \u003cstrong\u003e1.7\" gas-block journal\u003c\/strong\u003e. Its muzzle has \u003cstrong\u003e1\/2x28 threads\u003c\/strong\u003e, a full shoulder and an \u003cstrong\u003e11-degree target crown\u003c\/strong\u003e. The thread pattern accepts compatible brakes, compensators and direct-thread suppressors.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFor suppressed configurations, Faxon recommends an \u003cstrong\u003eadjustable low-profile gas block\u003c\/strong\u003e to tune the comparatively large gas port used on this short barrel. The barrel weighs approximately \u003cstrong\u003e1.14 lb\u003c\/strong\u003e, balancing compact dimensions with a profile intended for controlled weight distribution.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eManufacturing checks include full stress relief, air-gauge testing, magnetic-particle inspection and individual headspace checking. This \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew\u003c\/strong\u003e\u003c\/span\u003e barrel is a focused choice for a compact 5.56 NATO AR-15 build requiring a mid-length gas interface and suppressor-ready muzzle threads.\u003c\/span\u003e\u003c\/p\u003e","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":54988261294402,"sku":"169222","price":155.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_2f603fa9-dfb8-4ccc-908d-dd36aff589fb.png?v=1784130065","url":"https:\/\/centerfiresystems.com\/products\/faxon-firearms-duty-series-ar-15-5-56-nato-11-5-gunner-barrel-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}