DUTY 5.56X45 NATO PENCIL PROFILE RIFLE BARRELS FOR AR-15

Manufactured in-house, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. Quality is imbued into Faxon’s barrels from the start. Faxon 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. Faxon AR-15 5.56 Pencil barrels have a narrow O.D. both fore and aft of the gas block, for maximum weight saving. AR-15 5.56 Pencil barrels are manufactured at Faxon’s ISO-certified facility from one of the hardest materials on the planet, 4150 CMV carbon steel, featuring a QPC black Nitride or FDE coating for superior wear-resistance and longevity. All Faxon AR-15 5.56 Pencil barrel feature M4 feedramps for to aid in reliable chambering and extraction of round, and they must pass magnetic particle inspection to ensure consistent quality. SPECS 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 or Mid-Length 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: 10.5” barrel 1.9 lbs / 14.5” barrel 1.15 lbs / 16” barrel 1.20 lbs Magnetic Particle Inspected 11-degree Target Crown