{"product_id":"faxon-firearms-duty-series-ar-15-300-blackout-10-5-gunner-barrel-nitride","title":"Faxon Firearms Duty Series AR-15 300 Blackout 10.5\" Gunner Barrel - 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\u003eAR-15 barrel\u003c\/strong\u003e chambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e300 Blackout\u003c\/strong\u003e\u003c\/span\u003e. Its compact \u003cstrong\u003e10.5\" length\u003c\/strong\u003e and \u003cstrong\u003epistol-length gas-system location\u003c\/strong\u003e suit compact, direct-gas AR-15 builds.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFaxon's \u003cstrong\u003eGunner profile\u003c\/strong\u003e uses a Government-style taper behind the gas block and a lighter Pencil-style section forward of it. This contour retains material near the chamber while shifting barrel weight rearward. The barrel is made from \u003cstrong\u003e4150 chrome-moly-vanadium gun-barrel-quality steel\u003c\/strong\u003e and weighs \u003cstrong\u003e1.10 lb\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe bore is \u003cstrong\u003ebutton rifled\u003c\/strong\u003e with a \u003cstrong\u003e1:8 twist\u003c\/strong\u003e. A \u003cstrong\u003eblack QPQ nitride finish\u003c\/strong\u003e covers both the bore and exterior. Additional build details include \u003cstrong\u003e5\/8x24 muzzle threads\u003c\/strong\u003e, an \u003cstrong\u003e11-degree target crown\u003c\/strong\u003e, and a \u003cstrong\u003e0.750\" gas-block journal\u003c\/strong\u003e measuring \u003cstrong\u003e1.9\" long\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis barrel is stress relieved, air-gauge tested, magnetic-particle inspected, and individually checked for headspace. It is supplied in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eNew condition\u003c\/strong\u003e\u003c\/span\u003e with an installed \u003cstrong\u003eM4-pattern barrel extension\u003c\/strong\u003e. A gas block is not included.\u003c\/span\u003e\u003c\/p\u003e","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":54988216402242,"sku":"173823","price":147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_0787cdcd-581e-4401-b0ad-de18d87c6605.png?v=1784128500","url":"https:\/\/centerfiresystems.com\/products\/faxon-firearms-duty-series-ar-15-300-blackout-10-5-gunner-barrel-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}