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 & 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.
