Daniel Defense 12.5" Government Profile 5.56 NATO Barrel - Carbine-Length Gas

Daniel Defense 12.5" Government Profile 5.56 NATO Barrel - Carbine-Length Gas

The Daniel Defense 12.5" 5.56 Cold Hammer Forged Barrel is built for shooters who demand extreme durability, precision, and reliability from their AR‑15 platform. Engineered using Daniel Defense’s renowned Cold Hammer Forged (CHF) process, this barrel delivers exceptional longevity and accuracy—outperforming standard barrels in both hard‑use and high‑round‑count environments.

Crafted from 4150 Chrome Moly Vanadium steel, the barrel is finished with a Mil‑Spec heavy phosphate exterior and a chrome‑lined bore, ensuring superior corrosion resistance, heat tolerance, and consistent performance. The carbine‑length gas system provides smooth cycling and dependable function across a wide range of ammunition types, while the government profile balances strength and weight for optimal handling.

With a 1:7 twist rate, 1/2×28 muzzle threads, and an A4 barrel extension, this 12.5" barrel is ideal for compact builds, suppressed setups, and duty‑ready configurations. At just 1.40 lbs, it offers a lightweight yet rugged foundation for any premium AR‑15 build.

Cold Hammer Forged Construction
Delivers unmatched barrel life, exceptional strength, and superior accuracy.

4150 Chrome Moly Vanadium Steel
Premium material known for durability and heat resistance under sustained fire.

Mil‑Spec Heavy Phosphate Finish
Protects against corrosion and harsh environmental conditions.

Chrome‑Lined Bore
Enhances longevity, reduces fouling, and maintains consistent accuracy.

Government Profile
Balanced design offering strength without unnecessary weight.

1:7 Twist Rate
Optimized for stabilizing modern 5.56 projectiles, including heavier match rounds.

Compact & Lightweight
Ideal for SBRs, pistols, and suppressed builds at only 1.40 lbs.

Specifications

• Caliber: 5.56mm NATO
• Barrel Length: 12.5"
• Manufacturing Process: Cold Hammer Forged
• Twist Rate: 1:7
• Muzzle Thread: 1/2×28 TPI
• Material: 4150 Chrome Moly Vanadium
• Outside Finish: Mil‑Spec Heavy Phosphate
• Inside Finish: Chrome Lined
• Gas System: Carbine Length
• Gas Port Diameter: .750"
• Barrel Extension: A4
• Profile: Government
• Weight: 1.40 lbs