Faxon Duty Gunner 5.56 NATO 20" AR-15 Barrel

Faxon Duty Series Gunner Barrel

The Gunner profile represents a thoughtful engineering compromise between two proven designs. By combining the ruggedness of the Government profile with the weight advantages of the Pencil profile, Faxon has created a barrel that performs equally well whether you're at the range, in the field, or on a training course.

Design and Performance

This balanced profile shifts the rifle's weight distribution closer to your body, reducing fatigue during extended shooting sessions. The result is a firearm that handles naturally and responds predictably whether you're shooting prone, from a bench, or moving through tactical scenarios.

Manufacturing Quality

Faxon manufactures these barrels in-house in Cincinnati, Ohio, maintaining strict quality control throughout production:

• Material: Certified 4150 Mil-Spec steel, fully stress relieved
• Rifling: Button-rifled with 1:8 twist rate for excellent velocity and stability
• Crown: 11-degree target crown for superior accuracy
• Finish: Nitride coating inside and outside for corrosion resistance and durability
• Threading: 1/2"-28 for standard muzzle devices
• Gas System: Rifle-length for optimal reliability and reduced recoil impulse
• Inspection: Each barrel is individually headspace-checked with precision gauges

Specifications

• Caliber: 5.56 NATO
• Length: 20"
• Weight: 1.67 lbs
• Gas Block Journal: 1.9" diameter
• Extension: M4 barrel extension
• Finish: Black Nitride

This is a no-compromise barrel for shooters who demand accuracy, reliability, and balanced handling.