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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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Worth it
Purchased over a decade ago. Price hasn't gone up much, maybe ten bucks, good on Faxon for that. Accuracy is pretty good, ammo depending. Be warned, if you fire more than a full magazine in less than five minutes, it gets hot hot and fast. Zero doesn't shift much. But, if you have a lightweight aluminum handguard, bring gloves or add a front grip. It's impressively lightweight and therfore has little mass to absorb heat and like I said if your handguard is low mass and metal, bring gloves. I do not remove stars for the heat issue because Faxon is constrained by the laws of physics. But, dang it makes for a light and handy rifle. My 16 inch ar is lighter than many ar pistols I've handled, even with my eotech weighing most of a pound. Not sure how that is possible but it is what I've measured. So maybe they are violating the laws of physics after all.
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Faxon Quality
Typical high quality you can expect of Faxon. Cant go wrong
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Good barrel
I purchased this on sale and am very pleased with it. It’s good quality and fits perfectly with my faxon bolt carrier group I also purchased for my ar-15 build. My only negative with it is that it does not come with any dimples to attach a gas block to it.
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Faxon 5.56 barrel, 16"
Quality barrel like the other Faxon barrels I have bought. Took off one star because the barrel did not have a starter dimple for the gas block
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customers love them!
Good job I’m glad I’m a Faxon dealer.
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Best barrel ever
Consistently outshot all my buddies at the range with this barrel. They all spent big money on their pre built Daniel defense ar. Did some homework built my own slapped this baby on there and been loving it everyday since.
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16 inch gunner barrel and BCG Black Friday special
Purchased on black Friday with BCG. WHAT A DEAL for 199.00. Same great quality and accuracy as my other Faxon barrels and great value !!! 5 stars
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Just buy it! You won't be disappointed. Faxon... Nuff said! If it is made by Faxon, you know you're getting quality at a fair price. B E A utiful barrel! These guys know what they're doing. Put one in your build, take it out and shoot the snot out if
Faxon barrels... Nuff said!
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16" Gunner in 5.56 NATO
Fast delivery. Impecable outside finish. First session at the range gave me 2" groupings at 100 yrds. using 62gr green tips. Super light and a better choice than the pencil profile.