FAXON DUTY SERIES GUNNER PROFILE 14.5" MID-LENGTH 5.56 NATO AR15 BARREL
FaxonFaxon Duty Series Gunner Profile — 14.5" Mid-Length 5.56 NATO (1:8 Twist)
Lightweight, balanced, and pin-weld ready — the perfect blend of strength and maneuverability.
The Faxon Duty Series 14.5" Gunner Profile 5.56 NATO barrel combines the rigidity of the Government contour with the lightweight handling of the Pencil profile. This hybrid design brings the rifle’s balance point back toward the shooter, improving control, reducing fatigue, and maintaining superb accuracy. Ideal for pin-and-weld builds that achieve a 16" overall length.
Key Benefits
- Balanced Gunner profile: Merges Government and Pencil contours for the ideal weight-to-rigidity ratio.
- Mid-length gas system: Smooth cycling, reduced recoil impulse, and optimized gas pressure for reliability.
- Pin-and-weld compatible: 14.5" length is perfect for permanently attaching muzzle devices to reach 16" OAL.
- Durable and precise: Fully stress relieved, air-gauge tested, and magnetic particle inspected to ensure accuracy and integrity.
- Corrosion resistant: Inside and out black nitride finish enhances longevity and easy maintenance.
- Made in-house in Cincinnati, Ohio: Precision-engineered from 4150 CMV steel and individually headspace checked.
Specifications
Why Choose the Gunner Profile
The Gunner profile brings the rifle’s balance point rearward, improving handling and reducing fatigue during long sessions on the range or in the field. Faxon’s design maintains the strength and heat resistance of a Government profile while eliminating unnecessary forward weight for faster transitions and better control.
Installation & Compatibility
- Fits standard AR-15 upper receivers via M4 barrel extension.
- Use a .625" gas block on the 1.9" journal; adjustable models recommended for suppressor setups.
- 1/2-28 muzzle threads support brakes, comps, and direct-thread suppressor mounts.
- Perfect length for pin-and-weld builds to reach 16" OAL while maintaining excellent handling characteristics.
Frequently Asked Questions
Is the 14.5" barrel good for pin-and-weld builds?
What gas block size fits?
Is this barrel chrome-lined?
What ammo works best?
Overview: Faxon 14.5" Gunner Mid-Length Barrel
The Faxon Duty Series 14.5" Gunner Profile Barrel achieves the ideal balance of weight, strength, and smooth operation for 5.56 NATO carbines. The hybrid Gunner contour merges Government-level rigidity behind the gas block with Pencil-like weight savings forward of it, keeping your rifle fast and stable in any scenario.
Each barrel is machined from certified 4150 CMV steel and undergoes rigorous in-house quality control — including stress relief, air-gauge testing, magnetic particle inspection, and precision headspace verification. A durable black nitride finish protects inside and out, while an 11° target crown ensures consistent accuracy.
With its mid-length gas system and .625" gas block journal, the 14.5" Gunner is perfect for suppressed builds and pin-and-weld configurations. Whether your focus is training, defense, or competition, this barrel offers the performance, weight, and durability that define Faxon’s Duty Series.
- Caliber:
- 5.56 NATO
- Barrel Profile:
- Gunner
- Barrel Material:
- 4150 CMV
- Rifling Twist Rate:
- 1:8
- Muzzle Thread:
- 1/2x28
- Gas Block Diameter:
- .625"
- Gas System Length:
- Mid
- Barrel Length:
- 14.5"
- Outside Finish:
- QPQ Nitride
Reviews
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Excellent
I have owned this for around 3 years as of the time of this review. This barrel was my second Faxon barrel and II am very happy with it. Much like my other barrels from Faxon, this barrel is very handy and accurate and makes for an excellent build. I highly recommend this barrel!
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Great product
This barrel exceeded my expectations. Reduced weight and group sizes on my rifle.
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14 in. Gunner Barrel
This thing is fantastic. 1in. Groupings at 100 yards. Excellent fit and finish. I would highly recommend if you are looking to build a shorter barreled rifle. This will go on many of my builds for my customers. They love it and so do I.
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14.5" Gunner
Excellent product, extremely well made, would highly recommend to friends and family.
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Amazing Barrel
Great manufacturing on the barrel fit and finish. Bought the serialized matching BCG which also has an awesome QPQ finish on it. Finished the build went to the range to sight it in, took 9 round to get it zeroed in and had a nickel sized group with 55 grain X193 ammo. Liked it so much ordered another barrel (government model) and BCG for another build
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14.5" GUNNER, 5.56 NATO, Mid-Length, 4150 QPQ
I was in the process of building an new AR and wanted a lightweight barrel. I queried the internet and came across Faxon's website. I compared Faxon's 16" Pencil Barrel to almost every barrel on the internet and found that this was a truly lightweight barrel weighing in at only 1.2 lbs. In comparison to another major manufacturer's 1.7 lb lightweight barrel this was truly light. I ended up though settling on the 14.5" GUNNER barrel which also weighed 1.2 lbs. I went with the GUNNER so i could keep the gun more compact. A 16" barrel with a muzzle device can end up measuring more than 18". The barrel came packaged very wel in a ziplock type bag in a hard cardboard tube. I also order the .625" gas block and mid-length gas tube. All of the items were packaged well and fit in the tube nicely. Closed cell foam blocks were on each end to keep everything tight. I inspected the barrel and found it to be very well made with no visible tool marks, even coloring along the barrel, and nicely balanced. The gas block and gas tube were as expected and in very good condition. The barrel fit snug in my Anderson upper receiver with no play. I mated the barrel to the gun with a UTG PRO M-LOK™ M&P10 13" Super Slim Free Float Handguard that weighs only 14.5 ounces. The goal for this build was to make it lightweight and free from all of the unnecessary trappings of an AR build that most people put on a gun they will hardly ever fire. After the build was complete I went out to the range to test fire the gun to break the barrel in and to get it sighted in. I followed Faxon's online instructions for the barrel break-in and found the barrel tolerances to be nice and tight. Cleaning my duty rifle and cleaning this rifle was quite different. With my commercially made duty rifle a bore brush barely seems to make contact with the inside of the barrel. Running the bore brush through my Faxon GUNNER barrel was much different. The brush made very positive contact with the sides of the barrel and there was resistance all the way through the barrel. After following the proper break-in procedures I sighted in the rifle. After sighting the rifle groups were very nice. I was not using a bench rest and at 50 yards I was getting 1.5" groups with iron sights. I am confident that if I was using a red dot optic or a scope that I could get the groups under 1". I was so impressed with my Faxon 14.5" GUNNER barrel that I went ahead and ordered the 16" Pencil barrel for another build. Thank you Faxon for supporting LEO's.
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2nd build with 14.5" Gunner.
14.5" Gunner is perfect for lightweight builds. Both builds under 5 lbs. and function perfectly with outstanding accuracy.
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Top Quality
Fast shipping of quality products. Thanks for the LEO services.
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Price Point, Quality, Handling
This is my 3rd Faxon barrel. Accuracy: Good to excellent depending on ammo. Cheap ammo around 2". Hunting and target ammo around 1". 100yd groups, 1-4power scope. Handling: The weight distribution of this barrel, plus a lightweight handguard, make it handle like a dream. Quality: It's an attractive and well finished product. No issues during assembly. The fit to my aero upper was nice and snug.