Description
Faxon built this Match Series barrel for AR-15 shooters who want serious 6mm ARC accuracy without hauling around a bull-barrel up front. It starts as 416R stainless bar-stock and gets cut with 5R hybrid rifling, a design where the lands sit opposite the grooves with softened angles. That combination cuts down on jacket deformation, squeezes out a bit more velocity, and makes cleaning a whole lot less of a chore. The 16-inch length and mid-length gas system land in a sweet spot for the ARC, giving you a softer recoil impulse and reliable cycling across a range of factory loads.
What the Gunner Profile Brings to the Table
The Gunner contour is the heart of this barrel. It blends the durability of a government profile with the weight savings of a pencil profile, tapering down to a .750" gas block journal and thinning out toward the muzzle. Pulling that weight off the front pulls the rifle's balance back toward your body, which means less muzzle droop and less fatigue when you're behind the gun for a full day of shooting, training, or hunting. At right around 1.57 pounds, it's one of the lighter 6mm ARC options you'll come across, and folks coming from a heavier government barrel tend to notice the difference the second they mount the upper.
Why 6mm ARC Works So Well Here
The 6mm ARC was Hornady's answer to squeezing long-range performance out of the AR-15 platform. It sends high-BC 6mm bullets flat and fast with modest recoil, staying supersonic well past 1,000 yards in the right setup while still feeding from standard-pattern magazines. That makes it a genuine do-it-all round for precision practice, predator and medium-game hunting, and steel at distance. The 1:7.5 twist on this barrel is dialed in to stabilize the heavier match bullets the cartridge is known for.
Built and Tested at Faxon's Cincinnati Shop
Every Match Series barrel is manufactured 100% in-house, stress relieved, air-gauge tested, and Magnetic Particle Inspected before it ships. The bore and exterior are treated with salt-bath nitride for corrosion resistance and extended life, and the M4 barrel extension wears a Nickel Teflon coating that tightens up the fit against your receiver for cleaner lockup. The muzzle is finished with an 11-degree recessed target crown and 5/8×24 threads, so any standard-thread muzzle device or suppressor drops right on.
Key Specifications
- Manufacturer: Faxon Firearms
- Model: Match Series
- Manufacturer Part Number: 15BARC75M16NGQ-5R-NP3
- UPC: 816341025745
- Caliber: 6mm ARC
- Barrel Length: 16"
- Profile: Gunner
- Twist Rate: 1:7.5
- Rifling: 5R Button Rifled
- Barrel Material: 416-R Stainless Steel
- Finish: Salt Bath Nitride (inside and out)
- Gas System: Mid-Length
- Gas Block Journal: .750"
- Muzzle Thread: 5/8×24 TPI
- Barrel Extension: M4, Nickel Teflon Coated
- Weight: 1.57 lbs
What’s Included
- Faxon Match Series 6mm ARC 16" Gunner barrel
Frequently Asked Questions
Will this Faxon 6mm ARC barrel fit a standard AR-15 upper?
Yes, it drops into a standard AR-15 upper receiver just like any other AR-15 barrel. Keep in mind you'll need a 6mm ARC bolt for proper headspacing, since the ARC uses a different bolt face than 5.56. You'll also want ARC-specific magazines to feed it reliably.
What twist rate is this barrel and what bullet weights does it handle?
This barrel runs a 1:7.5 twist, which is tuned for the 6mm ARC cartridge and stabilizes the heavier high-BC match bullets it's known for. That covers the popular 105 to 108 grain loads shooters reach for at distance. It'll also shoot lighter varmint-weight bullets without issue.
What can I do with a 6mm ARC once this barrel is built up?
The 6mm ARC is a genuine do-it-all round on the AR-15 platform, sending flat-shooting 6mm bullets with light recoil out past 1,000 yards in a good setup. It's a strong pick for long-range precision practice and steel, plus predator and medium-game hunting like deer and antelope. You get that reach while keeping a lightweight, standard AR-15 lower.
Does the Faxon Match Series barrel come dimpled for a gas block?
No, Faxon does not dimple these barrels from the factory. Most builders run a quality gas block with set screws and a bit of thread locker, or drill their own dimples if they prefer. The .750" gas block journal works with a wide range of standard gas blocks.





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