The Faxon .350 Legend 16-inch Gunner Profile AR-15 Barrel, Black (brand part no. 15AL16C16NGQ) is button rifled from 4150 Chrome Moly Vanadium steel and chambered to SAAMI spec for .350 Legend, a straight-wall cartridge popular for hunting in shotgun-only states. Faxon builds it in the Gunner profile, a contour that balances durability with reduced weight, and finishes the barrel with Nitride coating on both the inside and outside surfaces for corrosion resistance. An 11-degree target crown protects accuracy at the muzzle, and the barrel pairs a carbine-length gas system with a 0.750-inch gas block diameter and a 1.9-inch gas block journal, all built around an M4 barrel extension. It is threaded 1/2×28 for standard AR-15 muzzle devices. For AR-15 builders chasing .350 Legend’s straight-wall hunting performance, this AR15 barrel is a complete, ready-to-build barrel.

Key Specifications

• Chambered in .350 Legend, SAAMI spec.
• Barrel length measures 16 inches.
• Rifling twist is 1:16.
• Machined from 4150 Chrome Moly Vanadium steel.
• Rifled with button rifling.
• Built in Faxon’s Gunner profile.
• Finished with Nitride coating inside and outside the barrel.
• The muzzle is threaded 1/2×28.
• Uses a carbine-length gas system with a 0.750-inch gas block diameter and 1.9-inch journal length.
• Cut with an 11-degree target crown and weighs about 1.36 pounds.

Frequently Asked Questions

What gas block does this barrel need? A 0.750-inch diameter gas block matched to the 1.9-inch journal length on the carbine-length gas system.

Why choose .350 Legend? It’s a straight-wall cartridge built for hunting in states that restrict rifle hunting to straight-wall calibers.

What barrel extension does it use? An M4 barrel extension.

Buy the Faxon .350 Legend 16in Gunner Profile AR-15 Barrel

Button-rifled 4150 steel and a Nitride finish give straight-wall hunters a genuinely durable AR-15 barrel for .350 Legend. Order it from our Lubbock, Texas gun shop for fast, insured shipping.