Faxon Firearms Duty Series Gunner Barrel for AR-15 – 5.56 NATO, 20″, Rifle Length Gas (15A58R20NGQ)

• 5.56 NATO AR-15 barrel intended for precision shooting and extended range applications
• 20 inch barrel length with rifle length gas system for smoother recoil impulse
• 1:8 twist rate stabilizes a variety of bullet weights for versatile performance
• 4150 steel construction with button rifled bore for durability and consistent accuracy
• Nitride finish inside and outside enhances corrosion resistance and barrel lifespan
• Gunner profile balances weight and stiffness for improved handling and reduced shooter fatigue

The Faxon Firearms Duty Series Gunner Barrel 556 NATO 20″ Rifle Length is a rifle barrel designed for AR-15 platforms chambered in 5.56 NATO. This rifle barrel is used for firearm builds requiring a 20 inch barrel with a rifle length gas system.

The Faxon Firearms Duty Series Gunner barrel features 4150 steel construction with button rifling and a 1:8 twist rate. It includes a Gunner profile, a rifle length gas system, and a .625 inch gas block diameter with a 1.9 inch journal length. The barrel is finished with nitride treatment and uses a 1/2×28 muzzle thread. This rifle barrel fits AR-15 platforms with an M4 extension and weighs approximately 1.67 pounds. In standard configurations, the 20 inch length supports extended rifle setups for range use.