The Faxon Firearms Duty Series Gunner Profile 5.56 18-inch AR Barrel (brand part no. 15A58R18NGQ) blends the two best-performing AR barrel profiles into one design. Faxon’s Gunner profile combines the durability of the Government profile with the weight savings and maneuverability of the Pencil profile, shifting the rifle’s balance back toward the shooter’s body to limit fatigue during long days of shooting, training, or hunting. Every Faxon barrel is fully stress relieved, air-gauge tested, and finished with an 11-degree target crown to protect accuracy, and this one adds button rifling plus a full Nitride finish inside and out for corrosion resistance in the bore as well as on the exterior. Built with a mid-length gas system, a 1.9-inch gas block journal, and an M4 barrel extension, it is threaded 1/2-28 for standard AR-15 muzzle devices. For AR15/M16 builders who want a lighter-handling barrel without giving up durability, this AR15 barrel is built to run all day.

Key Specifications

• Chambered in 5.56x45mm NATO / .223 Remington.
• Barrel length measures 18 inches.
• Rifling twist is 1:8.
• Built in Faxon’s Gunner profile, blending Government-profile durability with Pencil-profile weight savings.
• Shifts rifle balance back toward the shooter to limit fatigue over long days.
• Fully stress relieved and air-gauge tested for accuracy.
• Cut with an 11-degree target crown.
• Rifled with button rifling.
• Finished with Nitride coating inside and outside the barrel.
• Built with a mid-length gas system and a 1.9-inch gas block journal.

Frequently Asked Questions

What is the benefit of the Gunner profile? It combines the durability of a Government-profile barrel with the lighter weight and maneuverability of a Pencil-profile barrel.

Is this barrel tested before it ships? Yes, every Faxon barrel is fully stress relieved and air-gauge tested for accuracy.

What gas block does this barrel need? One sized for the 1.9-inch gas block journal on the mid-length gas system.

Buy the Faxon Duty Series Gunner Profile 5.56 18in AR Barrel

A profile built to balance durability against fatigue makes this barrel equally at home on a duty rifle or a long day of training. Order it from our Lubbock, Texas gun shop for fast, insured shipping.