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Daniel Defense 16″ 5.56 NATO Mid-Length Lightweight Barrel 1:7

UPC: 815604010108

$348.00

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Description

The Daniel Defense 5.56 NATO barrel cuts down on front-end weight without compromising the durability your rifle needs. The lightweight profile makes a real difference when you're carrying your gun, while the mid-length gas system keeps recoil smooth and reliable. Everything here is built to handle actual use, not just look good on the shelf.

What Makes the DD Mid-Length Barrel Stand Out

Daniel Defense uses cold hammer forging to build this barrel, which means you get a defect-free bore and the most consistent chamber possible. This process involves intense hydraulic pressure from opposing carbide steel hammers shaping the barrel around a mandrel, creating the chamber, lands, and grooves all in one step. You end up with a barrel that's accurate from the first round and stays that way through thousands of cycles. The chrome-lined bore makes cleaning easier too, something you'll appreciate after heavy range days.

Specs That Matter for Your Build

The 1:7 twist handles the full range of common 5.56 loads, stabilizing everything from 55 grain practice ammo up to heavier 77 grain match rounds. The mil-spec heavy phosphate coating provides corrosion resistance without adding bulk, and the chrome lining inside keeps the bore from wearing down quickly. At 1.35 pounds, this barrel keeps your rifle balanced without sacrifice. The mid-length gas system pairs perfectly with mid-length uppers and handguards, giving you that smooth impulse that makes follow-up shots faster and cleaner than carbine-length setups.

Real-World Performance

Builders consistently report this barrel delivering sub-MOA accuracy right out of the box, even with standard military surplus ammo. One owner ran 11,000 rounds downrange before deciding to upgrade, noting the bore still looked brand new under inspection. The fit and finish are meticulous, with users regularly commenting on how the crown and chamber look when they crack open a fresh one. That attention to detail in manufacturing translates directly to reliability you can count on.

Key Specifications

  • Caliber: 5.56×45 NATO / .223 Remington
  • Barrel Length: 16 inches
  • Profile: Lightweight
  • Twist Rate: 1:7
  • Gas System: Mid-Length
  • Muzzle Thread: 1/2×28 TPI
  • Material: 4150 Chrome Moly Vanadium Steel
  • Manufacturing Process: Cold Hammer Forged
  • Bore Finish: Chrome Lined
  • Exterior Finish: Mil-Spec Heavy Phosphate
  • Weight: Approximately 1.35 lbs
  • Gas Block Journal Diameter: .750 inches
  • Barrel Extension: A4
  • Manufacturer Part Number: 07-078-09136-018
  • UPC: 815604010108

What’s Included

  • Daniel Defense Lightweight Mid-Length 5.56 NATO Barrel

Frequently Asked Questions

Will this mid-length barrel work with my mid-length upper?

Yes. This barrel is specifically designed for mid-length uppers and handguards. The mid-length gas system matches standard mid-length builds perfectly, and the .750 inch gas block journal accepts both low-profile blocks and traditional front sight bases used in mid-length configurations.

What ammunition does the 1:7 twist stabilize?

The 1:7 twist handles the full range of 5.56 NATO and .223 Remington ammunition. It stabilizes lighter 55 grain rounds effectively but really excels with heavier bullets like 62, 69, and 77 grain loads. If you shoot a mix of different bullet weights, this twist rate gives you flexibility without compromise.

How does the lightweight profile compare to a government profile?

The lightweight profile sheds about a quarter pound off the front end compared to a government profile barrel, making a noticeable difference in handling and maneuverability. You lose minimal durability or accuracy, but gain easier carry and faster target transitions. Both are cold hammer forged from the same material.

Is the chrome lining hard to clean?

Chrome lining actually makes cleaning easier, not harder. The smooth chrome surface releases fouling readily and resists corrosion better than bare steel. A quick pass with a bore snake after shooting keeps it looking brand new with minimal effort.

Additional information

UPC

815604010108

Manufacturer

Manufacturer Part Number

07-078-09136-018

Barrel Length

16"

Caliber/Gauge

.223 REM/5.56 NATO

Color

Black

Length

16"

Model

Product Type

Barrel

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