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Daniel Defense earned its reputation on barrels, and this 14.5" 5.56 NATO is exactly why. It starts as 4150 chrome moly vanadium steel and gets cold hammer forged, a process where carbide hammers shape the bore, lands, grooves, and chamber around a mandrel all at once. The result is a defect-free bore and one of the most consistent chambers you'll find on a factory barrel. Every one is made start to finish at the Daniel Defense facility in Black Creek, Georgia.
This one wears a government profile with a mid-length gas system, which is the sweet spot a lot of builders chase. The mid-length setup spreads out the pressure curve compared to a carbine gas system, so you get a softer recoil impulse, less wear on parts, and cleaner cycling. The bore is chrome lined and the exterior wears a mil-spec heavy phosphate finish, so it shrugs off heat, fouling, and the kind of round counts that eat lesser barrels alive.
The 1:7 twist is the workhorse rate for 5.56, stabilizing everything from lighter varmint loads up through heavier 62 to 77 grain match and defensive bullets. The muzzle comes threaded 1/2-28, the standard pitch for 5.56, so your favorite flash hider, comp, or suppressor mount threads right on. It carries an A4 barrel extension and a .750 diameter at the gas port for common low-profile gas blocks.
Folks who've run these hard tend to say the same thing: they headspace right the first time, fit tight in quality uppers, and just run. Reports of thousands of rounds through them, including steel case, without losing accuracy are common. If you're building a duty-style carbine or a serious range gun and want a barrel you won't second-guess, this is a proven pick that punches well above a lot of the competition.
No, this is a stripped barrel assembly. It does not include a gas block, gas tube, or muzzle device, so you'll want to have those on hand for your build. The muzzle is threaded 1/2-28 for standard 5.56 devices and the gas journal is .750 for common low-profile gas blocks.
This barrel uses a mid-length gas system. Compared to a carbine-length setup, mid-length gives a smoother recoil impulse and reduces wear on the bolt and other components, which is a big reason builders favor it on 14.5" and 16" 5.56 barrels.
Yes. The 1:7 twist is the most versatile rate for 5.56 and handles everything from lighter loads up through heavier 62 to 77 grain match and defensive projectiles. It's the same rate used on military-spec barrels for that reason.
Very. The chrome-lined, cold hammer forged 4150 CMV bore is built for high round counts and holds up well to heat and fouling. Users regularly report thousands of rounds, including steel-cased ammo, with accuracy and reliability holding steady.
| UPC | 852548002448 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 0707719125018 |
| Barrel Length | 14.5" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Color | Black |
| Length | 14.50" |
| Model | |
| Product Type | Rifle |
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