"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: 5.56 NATO Barrel Twist: 1:8 Barrel Length: 16"" Barrel Profile: Gov't/SOCOM Barrel Gas System: Mid Length Inside Finish: QPQ Nitride Outside Finish: QPQ Nitride Muzzle Thread: 1/2-28 TPI (Threads Per Inch) Gas Block Diameter: .750"" Gas Block Journal Length: 1.9"" Barrel Extension: M4 Weight: 1.65 lbs Magnetic Particle Inspected! 11-degree Target Crown"
