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Faxon's Gunner profile has earned its reputation as the go-to contour for AR-15 builders, and this 16" mid-length version is the one most folks start with and never feel the need to upgrade past. The profile mimics a Government taper from the extension back to the gas block, then switches to a slimmer pencil profile out front. That combo strips weight where it isn't doing any work while leaving material toward the rear to soak up heat and cut down on barrel whip. The result is a rifle that feels quick in the hands and doesn't wear you out on a long range day.
The balance point sits back toward the shooter, which pays off during transitions, offhand shooting, and anything that keeps the rifle up for a while. It's chambered in 5.56 NATO and happily runs .223 Remington too, with a 1:8 twist that stabilizes the common bullet weights from 55gr all the way up to 77gr match loads. The mid-length gas system is the right pick for a 16" barrel, giving you a softer recoil impulse, less wear on the bolt carrier, and better manners when a suppressor is involved.
This one is cut from certified 4150 chrome-moly-vanadium steel and finished in salt-bath nitride inside and out, hardening the surface for real corrosion and wear resistance and making cleanup easier. Faxon runs the whole process in-house in Ohio: every barrel is stress relieved, air-gauge tested, MPI inspected, and 11-degree target crowned for accuracy. The gas block journal measures .625", the muzzle is threaded 1/2"x28 for your choice of muzzle device, and it comes cut with M4 feed ramps.
Whether you're putting together a general-purpose carbine, a training gun, or a home defense build, this is a proven workhorse that punches well above its weight. It's backed by Faxon's lifetime guarantee.
The 1:8 twist is a true all-arounder, stabilizing 5.56 NATO and .223 Rem loads from about 55gr through 77gr. That makes it a solid pick whether you're running cheaper 55gr plinking ammo or heavier match projectiles. For most general-purpose 16" builds, this is the twist rate that gives you the widest ammo flexibility.
Mid-length gas is the natural match for a 16" barrel. It lowers port pressure compared to a carbine-length system, which smooths out the recoil impulse, reduces wear on the bolt carrier group, and plays nicer with a suppressor. You get a gun that runs reliably and feels a little softer at the shoulder.
No, the Duty Series Gunner ships as a bare barrel. It has a .625" gas block journal and 1/2"x28 muzzle threads, so you'll want to add a low-profile gas block, gas tube, and the muzzle device of your choice. The M4 feed ramps are already cut into the extension.
The Gunner keeps a Government-style taper from the barrel extension back to the gas block, then transitions to a lighter pencil profile out front. That removes weight where it doesn't add stiffness while keeping material to the rear for heat resistance. The payoff is a rifle that balances closer to your body and handles noticeably quicker.
| UPC | 816341020153 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 15A58M16NGQ |
| Barrel Length | 16'' |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Color | Black |
| Length | 16'' |
| Model | |
| Product Type | Barrel |
| Sights | No |
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