The Faxon 16" Gunner Profile 5.56 NATO AR-15 barrel is a hybrid of the Government and Pencil profiles — Govt durability and dwell where it matters with Pencil weight savings up front. The result is a barrel that swings faster on transitions and runs longer in carbines used for training, defense, or duty.

Specs:

• Caliber: 5.56 NATO (.223 Remington compatible)
• Length: 16"
• Profile: Gunner (Govt / Pencil hybrid)
• Twist: 1:8 — runs 55-77gr loads accurately
• Gas system: Mid-length
• Material: 4150 Mil-Spec CMV chromoly
• Finish: Nitride in and out
• Muzzle: 1/2x28 threaded
• Crown: 11-degree target crown
• QC: Stress relieved, air-gauge tested, individually headspaced
• Made in Cincinnati, OH

Build pairing: drops into any mil-spec AR-15 upper with a low-profile gas block sized for .750" journal. Pair with a quality mid-length gas tube and 16" handguard. For a quieter setup, the 1/2x28 muzzle accepts standard 5.56 brakes, flash hiders, or suppressor mounts.

Headspace is set at the factory. Run a 100–200 round break-in with quality ammunition and re-check torque on the barrel nut after the first range trip.