{"product_id":"faxon-firearms-duty-series-gunner-ar-15-5-56x45mm-nato-16-barrel-black-nitride","title":"Faxon Firearms Duty Series Gunner AR-15 5.56x45mm NATO 16\" Barrel - Black Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eFaxon Firearms Duty Series Gunner AR-15 barrel\u003c\/strong\u003e\u003c\/span\u003e, also identified as the \u003cstrong\u003eMatch Series\u003c\/strong\u003e model, is a \u003cstrong\u003e16\"\u003c\/strong\u003e replacement or build barrel chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e5.56x45mm NATO\u003c\/strong\u003e\u003c\/span\u003e. Its Gunner contour combines a Government-style profile from the barrel extension to the gas block with a lighter Pencil profile forward of the gas block, retaining material toward the rear while reducing forward weight.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFaxon constructs this barrel from \u003cstrong\u003e4150 chrome-moly-vanadium steel\u003c\/strong\u003e and applies a \u003cstrong\u003eblack QPQ nitride finish\u003c\/strong\u003e to both the interior and exterior. The bore is \u003cstrong\u003ebutton rifled\u003c\/strong\u003e with a \u003cstrong\u003e1:8 twist rate\u003c\/strong\u003e, and the barrel weighs \u003cstrong\u003e1.37 lb\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003emid-length gas system\u003c\/strong\u003e uses a \u003cstrong\u003e0.625\" gas-block journal\u003c\/strong\u003e measuring \u003cstrong\u003e1.9\" long\u003c\/strong\u003e, with a \u003cstrong\u003e0.081\" gas port\u003c\/strong\u003e. An \u003cstrong\u003eM4 barrel extension and feed-ramp configuration\u003c\/strong\u003e supports AR-15 installation.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt the muzzle, \u003cstrong\u003e1\/2x28 threads\u003c\/strong\u003e accommodate compatible muzzle devices, while the \u003cstrong\u003e11-degree target crown\u003c\/strong\u003e completes the muzzle geometry. The barrel is fully stress-relieved, air-gauge tested, magnetic-particle inspected, final inspected, and individually checked for headspace.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis product is offered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew Condition\u003c\/strong\u003e\u003c\/span\u003e and includes \u003cstrong\u003eone barrel\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":54988329615682,"sku":"161574","price":167.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_d78904b6-2437-460b-9109-00cf9564db9f.png?v=1784131747","url":"https:\/\/centerfiresystems.com\/products\/faxon-firearms-duty-series-gunner-ar-15-5-56x45mm-nato-16-barrel-black-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}