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Daniel Defense has a reputation for barrels that just plain last, and this 16-inch M4 carbine barrel is a big reason why. It's cold hammer forged from 4150 chrome moly vanadium steel, a process that shapes the rifling and chamber as the barrel itself is formed. The result is a bore that runs true and a chamber that stays concentric, which is exactly what you want when you're chasing accuracy and long life out of an AR-15 build.
The barrel wears a chrome lining and a mil-spec heavy phosphate finish, so it shrugs off heat, fouling, and the kind of hard use that eats up lesser barrels. The 1:7 twist rate is the versatile choice here, stabilizing everything from lighter varmint loads up through heavier 62 to 77 grain projectiles without complaint. Chambered for 5.56 NATO, it happily runs .223 Remington too, so you're not boxed into one type of ammo. The muzzle comes threaded 1/2×28, the standard pattern for AR-15 flash hiders, comps, and suppressor mounts.
This is the M4 contour with a carbine-length gas system, so it drops into standard carbine builds and pairs with common handguards and gas tubes. One nice touch on this particular version: it ships with Daniel Defense's own low profile clamp-style gas block already in the box. That block clamps to a .750 journal, weighs under two ounces, and tucks neatly under most free-float rails, which saves you sourcing and fitting one separately. Between that and the A4-style barrel extension, you've got a proven foundation for a duty-grade carbine, a range gun, or a home-defense build you can trust.
Daniel Defense makes these start to finish at their facility in Black Creek, Georgia, and their gear has earned trust with units like the Army Marksmanship Unit and SOCOM. That pedigree is a good part of why folks reach for the DD name when they want a barrel they won't have to think about again.
Yes. This version (MPN 07-075-21074) ships with Daniel Defense's own .750 low profile clamp-style gas block already included. It clamps on rather than requiring you to drill or dimple the barrel, and it sits low enough to fit under most free-float handguards. You'll still need to supply your own gas tube, muzzle device, and handguard for the rest of the build.
The 1:7 twist is the most versatile rate for a 5.56 barrel and stabilizes a wide range of projectiles. It handles heavier 62 to 77 grain loads with ease and still shoots lighter bullets well, so you're not locked into a single type of ammo. That flexibility is a big reason 1:7 is the go-to choice for general-purpose AR-15 carbines.
It will. This is an M4 contour barrel with a carbine-length gas system and an A4-style barrel extension, so it drops into standard AR-15 uppers and works with common carbine gas tubes and handguards. The .750 gas journal matches the included low profile gas block. As long as your build is set up for carbine-length gas, this barrel is a straightforward fit.
Cold hammer forging shapes the rifling and chamber as the barrel is formed, which produces a defect-free bore and a very consistent, concentric chamber. Paired with the chrome lining and heavy phosphate finish, that translates to strong accuracy and a barrel built to run thousands of rounds. Daniel Defense manufactures these start to finish in Georgia, and their barrels are trusted by military and law enforcement users.
| UPC | 815604010702 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 07-075-08174-018 |
| Barrel Length | 16" |
| Color | Black |
| Length | 16'' |
| Model | |
| Product Type | Barrel |
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