The Faxon Firearms Duty Series AR-15 Barrel (brand part number 15A38C16NGQ) is a 16-inch .300 AAC Blackout barrel machined to Faxon’s Gunner profile, giving carbine-length builds enough steel to manage heat without unnecessary weight. Finished in nitride with a 1:8 twist, it stabilizes the full range of common .300 Blackout bullet weights and runs a carbine-length gas system sized for a 0.750-inch gas block. The muzzle threads to accept standard-pattern muzzle devices, and Faxon finishes the crown at 11 degrees to protect accuracy.

Key Specifications

• Chambered in .300 AAC Blackout.
• Cut to 16 inches in barrel length.
• Rifled with a 1:8 twist rate.
• Machined to Faxon’s Gunner profile.
• Weighs approximately 1.48 pounds.
• Finished in nitride.
• Runs a carbine-length gas system sized for a 0.750-inch gas block.
• Muzzle is threaded to accept standard muzzle devices.
• Finished with an 11-degree target crown for accuracy.

Frequently Asked Questions

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

How much does this barrel weigh? Approximately 1.48 pounds.

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

Buy the Faxon Firearms 16-Inch .300 Blackout Barrel

Get a full-length, heat-managing .300 Blackout barrel for your next carbine build. Order it from our Faxon Firearms lineup, part of our AR-15 barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.