{"product_id":"faxon-firearms-duty-series-ar15-barrel-9mm-1-10-twist-4150-nitride-8-5-light-tapered-profile-blowback","title":"Faxon Firearms Duty Series AR15 Barrel 9mm 1:10 Twist 4150 Nitride - 8.5\" | Light Tapered Profile | Blowback","description":"Quality is imbued into our barrels from the start. We start with the best materials, either certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges. Technical Specifications  Barrel Material: 4150 Barrel Type: Button Rifled  Barrel Caliber: 9mm SAMMI  Barrel Twist: 1:10 Barrel Length: 8.5\" Barrel Profile: Pistol Caliber Taper Barrel Gas System: N\/A - Blowback Inside Finish: QPQ Nitride Outside Finish: QPQ Nitride Muzzle Thread: 1\/2-28 TPI (Threads Per Inch) Gas Block Diameter: N\/A Gas Port Diameter: N\/A Gas Block Journal Length: N\/A Barrel Extension: Colt \u0026amp; Glock Compatible Feed Ramps Weight: .81lbs 11-degree Target Crown    *Note - Faxon Firearms advertises its barrels by their legal length. Pistol Caliber Carbine barrels have the chamber built into the barrel \"extension\" area, which makes them about ~1\" shorter than centerfire rifle barrels. ","brand":"Faxon Firearms","offers":[{"title":"Default Title","offer_id":44685920764123,"sku":"15A910N8NLQ","price":115.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/files\/179889843.webp?v=1738346526","url":"https:\/\/www.atcostammo.com\/products\/faxon-firearms-duty-series-ar15-barrel-9mm-1-10-twist-4150-nitride-8-5-light-tapered-profile-blowback","provider":"AtCostAmmo.com","version":"1.0","type":"link"}