The Faxon Firearms AR-15 Barrel (brand part number 15A58M14NSQ) is a 14.5-inch 5.56 NATO barrel machined to the heavier SOCOM profile, adding steel forward of the receiver for better heat management during longer strings of fire. Finished in black matte with a 1:8 twist, it stabilizes the full range of common 5.56/.223 bullet weights and runs a mid-length gas system sized for a 0.750-inch gas block, timed for smooth, reliable cycling. Faxon threads the muzzle to accept standard-pattern devices and finishes the crown at 11 degrees to keep accuracy consistent even after field use.

Key Specifications

• Chambered in 5.56 NATO/.223 Remington.
• Cut to 14.5 inches in barrel length.
• Rifled with a 1:8 twist rate.
• Machined to the heavier SOCOM profile.
• Finished in black matte.
• Runs a mid-length gas system sized for a 0.750-inch gas block.
• Finished with an 11-degree target crown for accuracy.
• Muzzle is threaded to accept standard-pattern muzzle devices.
• Ships without iron sights, so pair it with the optic of your choice.

Frequently Asked Questions

What’s the difference with a SOCOM profile? It carries more steel forward of the receiver than a lightweight profile, helping the barrel manage heat during sustained fire.

What gas system does it run? A mid-length gas system sized for a 0.750-inch gas block.

Is the muzzle threaded? Yes, it’s threaded to accept standard-pattern muzzle devices.

Buy the Faxon Firearms 14.5-Inch 5.56 NATO Barrel

Get a heavier-profile 5.56 barrel built to manage heat through long range sessions. Order it from our Faxon Firearms lineup, part of our AR-15 barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.