Faxon Ar15 Barrel 5.56 Nato - 14.5" 1:8 Gunner Profile Blk

The Faxon AR-15 barrel in 5.56 NATO with a 14.5" Gunner profile is built for shooters who want a lightweight, accurate barrel without sacrificing heat management or shot-to-shot consistency. Faxon's proprietary Gunner profile uses a government-profile diameter from the extension back to the gas block, then transitions to a pencil profile forward—a design that strips unnecessary weight from the front end while keeping material where it matters most: behind the gas block where heat builds up fastest. That geometry keeps your barrel cooler longer and minimizes harmonic whip, making it equally at home on a carbine for duty use, a precision AR for distance work, or a versatile 3-gun rifle.

Made entirely in-house by Faxon, each barrel begins with 4150 CMV steel and is button-rifled with a 1:8 twist—a rate that stabilizes everything from lightweight varmint rounds to heavier match ammunition. The twist is fast enough for modern projectile weights without being so aggressive that you're forced into a narrow ammo diet. Every barrel is stress-relieved to eliminate residual tension, air-gauged for dimensional consistency, and dressed with an 11-degree target crown for clean, precise bullet release. Before it ships, Faxon subjects each barrel to a production gauntlet: headspace verification with hardened precision gauges, multiple QC checks throughout manufacturing, and a Nitride finish that hardens the steel surface for corrosion resistance and longer service life.

This is a no-nonsense, middle-of-the-road barrel length that balances velocity, handling, and compliance across most states—suitable for hunting, target shooting, or general duty use. The Gunner profile has earned respect in the AR community precisely because it solves a real problem: how to build a barrel that shoots reliably without carrying excess weight or running hot. If you're building an AR that needs to work hard and shoot straight, this is exactly the kind of engineering detail that separates a rifle you trust from one you merely own.

Key Features

• Faxon Gunner profile: government dimensions from extension to gas block, pencil taper forward for weight savings and heat management
• 4150 CMV steel, button-rifled with 1:8 twist rate
• Full stress relief and air-gauge inspection for dimensional consistency
• 11-degree target crown for consistent bullet release and accuracy
• Nitride finish for corrosion resistance and extended durability
• Individual headspace verification with precision hardened gauges
• 14.5" length suitable for carbine builds, hunting, and tactical applications
• Manufactured 100% in-house by Faxon with multi-point QC testing

Specifications

Frequently Asked Questions

What twist rate is this barrel, and what ammunition will it stabilize?

This Faxon barrel has a 1:8 twist rate. A 1:8 twist is fast enough to stabilize a broad range of 5.56 NATO loads, including modern heavier projectiles, without being overly aggressive. You won't be locked into a narrow ammo diet.

Why does the Gunner profile matter, and how is it different from a standard AR-15 barrel?

The Gunner profile uses government-standard dimensions from the extension to the gas block, then tapers to a pencil profile moving forward toward the muzzle. This design removes weight from the front of the barrel—improving handling and reducing fatigue—while concentrating material toward the rear where heat accumulation is greatest. The result is a barrel that stays cooler longer and shoots with less harmonic whip than heavier profiles.

Is this barrel suitable for a 14.5" carbine build?

Yes. The 14.5" length is a common choice for carbine-length gas systems and works well for hunting, range shooting, and tactical applications. You'll need to verify compatibility with your upper receiver and gas system, but the barrel itself is a standard AR-15 profile.

What manufacturing quality checks does Faxon perform on this barrel?

Every Faxon barrel is manufactured 100% in-house, stress-relieved, air-gauged for dimensional accuracy, and finished in Nitride. Before shipping, each barrel undergoes individual headspace verification with precision hardened gauges and passes multiple QC inspections throughout the production process.