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FAXON DUTY SERIES GUNNER PROFILE 16" MID-LENGTH 5.56 NATO AR15 BARREL
Faxon
$185.00
(25 reviews)
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Faxon
FAXON DUTY SERIES GUNNER PROFILE 16" MID-LENGTH 5.56 NATO AR15 BARREL
Faxon Duty Series Gunner Profile — 16" Mid-Length 5.56 NATO (1:8 Twist)
Balanced, lightweight, and accurate — the Gunner profile perfected for 16” duty builds.
The Faxon Duty Series 16" Gunner Profile 5.56 NATO barrel strikes the perfect balance between weight savings and durability. By blending the best features of the Government and Pencil profiles, Faxon’s Gunner design keeps your rifle nimble without sacrificing accuracy or heat control. Ideal for training, defense, and competition builds where reliability and handling matter most.
Key Benefits
- Hybrid Gunner profile: Combines Government durability with Pencil-like agility for the ultimate all-purpose barrel.
- Mid-length gas system: Reduces recoil and improves reliability over carbine setups.
- Lightweight handling: 16" barrel weighs just 1.37 lbs for excellent balance and fast target transitions.
- Premium materials: Made from 4150 CMV steel, button-rifled and fully stress relieved.
- Enhanced corrosion resistance: Black nitride finish inside and out for long-lasting performance.
- Precision guaranteed: Air-gauge tested, MPI-inspected, and headspace verified for match-level accuracy.
Specifications
Why Choose the Gunner Profile
The Gunner profile blends the heat resistance and rigidity of a Government contour with the reduced weight and responsiveness of a Pencil barrel. This balance enhances maneuverability while maintaining precision shot to shot — perfect for tactical, defensive, and performance-driven AR-15 builds.
Installation & Compatibility
- Standard M4 barrel extension fits all AR-15 upper receivers.
- Uses a .625" gas block on a 1.9" journal — adjustable blocks recommended for suppressed use.
- 1/2-28 threads accept most common muzzle devices and suppressor adapters.
- Optimized for mid-length gas tubes and standard AR-15 bolt carriers.
Frequently Asked Questions
What makes the Gunner profile special?
The Gunner combines Gov’t and Pencil contours for an ideal balance of heat resistance, accuracy, and lightweight handling.
Is this barrel chrome-lined?
No — Faxon uses a black nitride finish inside and out for durability and easy maintenance.
Can I use this barrel with a suppressor?
Yes — the mid-length gas system performs smoothly with suppressors, especially with an adjustable gas block.
What bullet weights are ideal?
The 1:8 twist stabilizes 55–77 grain bullets, covering both defensive and match-grade loads.
Overview: 16" Mid-Length Gunner Barrel
The Faxon Duty Series 16" Gunner Profile 5.56 NATO barrel delivers the perfect balance between weight, accuracy, and reliability. Combining the rigidity of a Government profile with the reduced front-end weight of a Pencil design, this hybrid contour enhances handling and long-term durability.
Every Faxon barrel begins as certified 4150 CMV steel and undergoes precision machining, stress relief, air-gauge testing, MPI inspection, and headspace verification. A black nitride finish protects the inside and out, while the 11° target crown ensures exceptional accuracy.
Whether you’re building a lightweight defensive rifle, a competition setup, or a dependable training carbine, the Gunner 16" barrel provides unmatched value and performance from 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:
- 16"
- Outside Finish:
- QPQ Nitride
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Reviews
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Outstanding quality!!! Even better price!
Had not really heard of Faxon until recently and I should feel ashamed. I recently watched some Q&A vids with a favorite youtube channel InRange, they had a Faxon rep that blew my mind with info. I just had to try a barrel from Faxon and was surprised by all the other quality stuff they seemed to make. I cannot yet comment on the accuracy of my barrel but the machining and finish are top notch. The gunner is a gorgeous barrel to say the least, I cannot say enough that the machining is perfect. Even the laser engraved Faxon logo is very nice. The best part is they almost seem to hit the perfect price point for me. I didn't want a cheap barrel thats only accurate when it's ice cold but I can't justify spending 350-400 for a quality barrel. Faxon hit my heart and wallet just right. Needless to say, as funds become available I will be buying most parts for my upper from Faxon and will keep you all updated with the results!!! Love the barrel just buy it!
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Nice
This is a nice barrel. Fit and Finish is very good. Will post after shooting it.
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Good fit and finish
Barrel looks great. Amazingly lightweight, almost scary after using heavy 18". Overall impressed with it.
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Great balance, great finish, very accurate
The profile has a great balance. the machining looks great, perfect fit in my Spikes upper, accuracy is outstanding
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I'm starting to repeat myslef
This Barrel is performed as good or better than I expected. I have quite a few barrels from Faxon firearms and I have come to trust in their accuracy, the craftsmanship, reliability, as well as their customer service. Feed ramps and extension are very clean and nicely done. Fit to my various upper receivers have been very consistent and borderline tight (this is a great thing). Great profile offers weight savings without jeopardizing function and longevity. With the right ammunition combination I am experiencing sub MOA groups. Highly recommend this barrel and many others offered by Faxon Firearms.
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16" Gunner Barrel is Perfect
I have used the 16: Faxon Gunner barrel in a few applications and find superb accuracy, combined with great fit, finish, contour look and attractive over all weight package for the complete rifle. Great barrel and reasonably priced... I recommend this barrel for your next 16" AR platform build!
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16" GUNNER, 5.56 NATO, MID-LENGTH, 4150 QPQ
Really like this barrel it and the bold assembly I bought with it worked great. I would recommend then to anyone.
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Buy this barrel if you want the best!
After having one of my customers ask me to build them a lightweight AR I started to research what would be the best barrel I could find that would fit his requirements. After some time we settled on Faxon’s 16” Gunner barrel. This is one of the best barrels out there. The Gunner barrel is top shelf, very accurate, the contour and weight is perfect and you can’t beat the price. We have use this barrel in over 20 builds and will never look back.
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Love this contour
Really love this contour on a barrel. The finish was very high quality. Shot great !!