Faxon Firearms, Match Series, Gunner, 1:7 Twist Barrel, 22 ARC, 16", Rifle Length Gas System, Fits AR-15, Nitride Finish, Black NEW WARNING Warning WARNING WARNING: This product can expose you to chemicals including machining coolant, machining oil, gun oil, & rust inhibitor, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov. Barrel Material: 416-R Stainless Steel Barrel Type: 5R Button Rifled Barrel Caliber: 22 ARC Barrel Twist: 1:7 Barrel Length: 16" Barrel Profile: Gunner Barrel Gas System: Rifle Inside Finish: Salt Bath Nitride Outside Finish: Salt Bath Nitride Muzzle Thread: 1/2x28 TPI Gas Block Diameter: .625" Gas Block Journal Length: 1.9" Barrel Extension: M4, Nickel Teflon Coated Weight: 1.57 lbs Magnetic Particle Inspected Recessed Target Crown Uses 6.5 Grendel bolt/BCG Product Description The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. Faxon's Gunner profile combines the durability of the Gov't profile with the weight savings and maneuverability of the Pencil profile. The Gunner profile brings the balance of the rifle back towards the shooter's body, limiting fatigue, and allowing for shooting, training, or hunting all day long. Faxon Firearms barrels are the pinnacle of value. Manufactured in-house in Cincinnati, Ohio, Faxon barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. Quality is imbued into their barrels from the beginning of the manufacturing process. They 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 with precision PTG gauges.