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Faxon builds every barrel in-house in Cincinnati, and their Duty Series SOCOM is the barrel a lot of folks reach for when they want something that just runs. The 16-inch length paired with a mid-length gas system is one of the best-balanced setups you can put on a 5.56 build, giving you a softer recoil impulse and less wear on your bolt carrier than a carbine-length gun. The heavier SOCOM contour adds material where it counts, so it stays rigid and manages heat when you're running strings of fire.
The SOCOM profile has roots in military use, and it earned its reputation by staying consistent when things get hot. That extra mass out front resists thermal shift and barrel whip, which translates to groups that hold together shot after shot. It's a proven contour for duty rifles, home-defense builds, or any all-purpose AR-15 where you'd rather have durability than shave every ounce.
This one starts as certified 4150 CMV steel, button-rifled with a 1:8 twist that stabilizes just about everything you'll feed it, from lighter 55-grain plinking loads up through heavier 77-grain match projectiles. The whole barrel, bore and exterior, gets a black nitride treatment for corrosion resistance and easy cleaning, and it wears an 11-degree target crown for repeatable accuracy. The muzzle is threaded 1/2×28 for standard flash hiders, brakes, and suppressor mounts.
Every Faxon barrel is stress-relieved, air-gauge tested, magnetic particle inspected, and individually headspace-checked before it ships. The .750 gas block journal and M4 feed ramps keep it compatible with the vast majority of handguards and components on the market. Between the mid-length gas timing and the SOCOM mass, it also makes a solid suppressor host, especially if you tune it with an adjustable gas block.
The 1:8 twist is one of the most versatile rates for 5.56, stabilizing loads from roughly 55 grains up through 77 grains. That covers everything from bulk practice ammo to heavier match-grade projectiles. It's a great all-around choice if you shoot a mix of loads.
No, this version ships as the bare barrel only, so you'll need to supply your own gas block, gas tube, barrel nut, and handguard. It uses a .750 gas block journal, which is the most common size on the market. If you want a factory-pinned gas block, Faxon offers that as a separate model.
Yes, the combination of mid-length gas timing and the heavier SOCOM contour handles suppressed use well. The extra barrel mass helps manage the added heat, and running an adjustable gas block lets you tune back-pressure for smoother cycling. Plenty of folks build dedicated cans hosts around this profile.
Faxon finishes every barrel with an 11-degree target crown and checks each one with air-gauge testing and headspace verification. Users report sub-MOA groups with quality match ammo like 77-grain OTM loads. The heavy contour helps hold point of impact even after the barrel warms up.
| UPC | 816341020108 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 15A58M16NSQ |
| Barrel Length | 16'' |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Color | Black |
| Length | 16'' |
| Model | |
| Product Type | Barrel |
| Sights | No |
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