Faxon Duty Series 5.56 NATO 16in 1:8 Nitride Barrel

Description

The Faxon Firearms Duty Series 16-inch barrel is built for AR-15/M16 platforms chambered in 5.56 NATO (.223 Rem). It uses 4150 Mil-Spec steel and finishes inside and out with a nitride process for corrosion resistance and consistent surface hardness. The barrel features a 1:8″ rate of twist, a mid-length gas system and a 1/2″-28 threaded muzzle for common muzzle devices. It is configured for service-oriented duty use where durability and reliable function are priorities.

Key Specifications

• The barrel is chambered for 5.56 NATO (.223 Rem).
• The barrel length is 16 inches.
• The rifling rate is a 1:8 twist.
• The blank material is 4150 Mil-Spec steel.
• The exterior and bore receive a nitride finish (black matte).
• The barrel uses button rifling.
• The gas system is a mid-length gas system.
• The muzzle is threaded to 1/2″-28 for common muzzle devices.
• The barrel is finished with an 11-degree target crown.
• The listed weight is 1.65 lbs.

Purpose-built for AR-15 owners who want a robust, service-oriented barrel, the Faxon Duty Series balances strength and practical performance. Its 16-inch length and mid-length gas system deliver reliable function with a broad range of 5.56 NATO loads, while the nitride treatment and precision headspace checks support long-term durability and consistent operation. This barrel is a straightforward choice for building or upgrading a dependable duty or general-purpose rifle.