10.5" PENCIL, 5.56 NATO, Carbine-Length, 4150 QPQ
10.5" PENCIL, 5.56 NATO, Carbine-Length, 4150 QPQ, Faxon Firearms barrels are the pinnacle of value. Manufactured 100% in-house from cradle-to-grave, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. 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. Barrel Material: 4150 CMV Barrel Type: Button Rifled Barrel Caliber: 5.56 Barrel Twist: 1:8 Barrel Length: 10.5" Barrel Profile: Pencil Barrel Gas System: Carbine Inside Finish: Nitride Outside Finish: Nitride Muzzle Thread: 1/2-28 Gas Block Diameter: .625" Gas Block Journal Length: 1.1" Barrel Extension: M4 Weight: .9 lbs Magnetic Particle Inspected! 11-degree Target Crown