The Faxon Firearms Duty Series 5.56 NATO 16-Inch Barrel (brand part number 15A58M16NHQ) is machined from 4150 chrome-moly-vanadium (CMV) steel and finished in Black Nitride for corrosion and wear resistance that outlasts standard phosphate coatings. Faxon cuts a 1:8-inch twist rate, a middle-ground pitch that stabilizes a broad range of 5.56 NATO and .223 Remington bullet weights from lightweight varmint loads up to heavier 77-grain match bullets. Part of Faxon’s Duty Series line, it’s built as a dependable, no-frills barrel for a duty or range-ready AR-15 build and ships bare, without sights.

Key Specifications

• Chambered in 5.56 NATO/.223 Remington.
• Cut with a 1:8-inch twist rate.
• Measures 16 inches in length.
• Machined from 4150 chrome-moly-vanadium (CMV) steel.
• Finished in Black Nitride for corrosion and wear resistance.
• Part of Faxon’s Duty Series barrel line.
• Ships without sights installed.

Frequently Asked Questions

What twist rate does this barrel use? A 1:8-inch twist, which stabilizes a wide range of 5.56/.223 bullet weights.

What is the barrel made from? 4150 chrome-moly-vanadium steel, finished in Black Nitride.

Does it come with sights? No, it ships as a bare barrel without sights.

Buy the Faxon Firearms Duty Series 5.56 NATO 16-Inch Black Nitride Barrel

Build a dependable duty or range rifle around a barrel that holds up to hard use. Order it from our Faxon Firearms lineup, part of our AR15 barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.