14.5'' 5.56 Lightweight Mid-Length Barrel 1-7 Twist

The Daniel Defense 14.5'' 5.56 lightweight mid-length barrel is a precision-built component engineered for shooters who want match-grade accuracy without the weight penalty. Built from cold hammer-forged chromium-molybdenum-vanadium steel and subjected to magnetic particle inspection, this barrel delivers the strength and consistency you'd expect from a high-end match rifle—but sized for practical AR-15 builds that don't sacrifice performance for portability. The 1-7 twist rate stabilizes a wide range of 5.56 projectiles, from 55-grain varmint rounds to heavier tactical loads.

At 14.5 inches, this barrel strikes a balance between velocity and handling. The lightweight contour reduces overall rifle mass without compromising rigidity where it counts. The M4-type feed ramps ensure reliable chambering, while the .750'' outside diameter at the gas block accommodates standard low-profile blocks and other gas system components. A durable manganese phosphate finish resists corrosion and wear—practical protection for hunting, range work, or duty use.

Whether you're building an SBR, a compact hunting upper, or a lightweight patrol rifle, a quality barrel is the foundation of accuracy and reliability. Daniel Defense's hammer-forged construction and quality control mean you're not just buying a tube of steel; you're getting a vetted component that will perform for years of shooting.

Key Features

• Cold hammer-forged chromium-molybdenum-vanadium steel for superior strength and accuracy
• Magnetic particle inspection (MPI) ensures no internal flaws or defects
• 1-7 twist rate handles a wide range of 5.56 ammunition weights
• Lightweight contour profile reduces rifle weight without sacrificing durability
• M4-type feed ramps for reliable feeding
• Manganese phosphate finish resists wear and corrosion
• .750'' gas block journal accommodates standard low-profile accessories

Specifications

Frequently Asked Questions

What 5.56 ammo does the 1-7 twist stabilize?

The 1-7 twist rate is versatile across the 5.56 spectrum. It reliably stabilizes everything from 55-grain varmint and match ammunition through heavier tactical loads, making it suitable for hunting, competition, and duty applications.

Is this barrel compatible with standard AR-15 parts and accessories?

Yes. The M4-type feed ramps integrate with standard AR-15 bolt carriers and receivers. The .750'' gas block journal accepts low-profile gas blocks and most other standard gas system components designed for mid-length systems.

What's the difference between lightweight and government profile barrels?

This barrel features a lightweight contour, which reduces overall weight while maintaining rigidity. Government profile barrels are heavier and offer slightly more heat capacity—choose lightweight for maneuverability and lighter builds, government for sustained fire or extra thermal mass.

Why does a barrel need magnetic particle inspection?

MPI detects internal flaws—stress cracks, voids, and inclusions—that could compromise strength or accuracy. Cold hammer-forged barrels undergo this inspection to ensure every barrel meets Daniel Defense's quality standards before it leaves the factory.