Faxon Firearms Duty Series Gunner Barrel Features The Faxon Firearms Duty Series Gunner Barrel combines the durability of a government profile with the weight savings of a pencil profile bringing the rifle s balance back toward the shooter s body. That balance reduces fatigue during long days of shooting training or hunting letting the rifle feel lighter in hand without sacrificing barrel stiffness. Machined from chrome moly vanadium steel the barrel is button rifled for tight consistent rifling that supports accurate shot placement downrange. A 1:16 inch twist rate is matched specifically to stabilize .400 Legend bullets through their full weight range. A nitride finish coats the bore and exterior providing corrosion resistance and a hard low-friction surface that eases cleaning and extends barrel life. The 1/2x28 thread pattern at the muzzle accepts a wide range of standard muzzle devices and suppressors sized for that pitch. Faxon builds quality into every barrel from the start of the manufacturing process giving shooters confidence in both accuracy and long-term reliability. For a durable well-balanced .400 Legend barrel upgrade the Faxon Firearms Duty Series Gunner Barrel is available for sale at GrabAGun. Faxon Firearms Duty Series Gunner Barrel Specifications Manufacturer: Faxon Firearms Model: Duty Series Gunner Barrel Caliber: .400 Legend Material: Chrome Moly Vanadium Finish: Nitride Barrel Type: Button Rifled Twist Rate: 1:16 Barrel Length: 16 Thread Pattern: 1/2x28 Available At: GrabAGun