11.5'' Government Carbine 5.56 Barrel 1-7 Twist

The Daniel Defense 11.5'' Government Carbine 5.56 Barrel with 1-7 twist rate is a cold hammer-forged 5.56x45 barrel built for short-range versatility in a compact package. Built from chromium-molybdenum-vanadium alloy steel, this barrel delivers the kind of strength and precision you'd expect from a high-end match-grade component. Whether you're building a truck gun, a tight-quarters home-defense rifle, or a lightweight patrol carbine, an 11.5'' barrel strikes the balance between velocity, handling, and velocity loss—ideal for ammunition performance and terminal ballistics at the distances these guns typically operate.

Daniel Defense barrels undergo magnetic particle inspection (MPI) to catch internal flaws before they become failures downrange. The manganese phosphate finish resists wear and corrosion in the field, and the M4-type feed ramp extension ensures reliable feeding across a wide range of 5.56 ammo. At .750'' OD at the gas block, this barrel accommodates standard carbine-length gas tubes and plays well with off-the-shelf furniture and handguards. The 1-7 twist handles the full spectrum of 5.56 projectiles, from lightweight varmint loads to heavy match rounds, without any compromise.

If you're swapping uppers, shortening a rifle, or assembling a purpose-built short-barreled carbine, this government-profile barrel delivers the reliability and accuracy Daniel Defense is known for without the premium cost of a complete upper receiver assembly. Choose this if you want the barrel that serious gunsmiths and competitive builders reach for.

Key Features

• Cold hammer-forged chromium-molybdenum-vanadium steel for strength and longevity
• Magnetic particle inspection (MPI) for internal quality assurance
• Manganese phosphate finish resists wear and corrosion
• M4-type feed ramps for reliable feeding
• Government contour profile fits standard carbine-length gas systems
• 1-7 twist rate stabilizes a wide range of 5.56 projectiles
• .750'' gas block diameter compatible with common accessories

Specifications

Frequently Asked Questions

Is this barrel compatible with my AR-15 upper receiver?

Yes, if your upper is designed for a carbine-length gas system. The .750'' gas block diameter and M4 extension are standard AR-15 specifications. Verify your upper's compatibility with barrel length and gas system type before purchase.

What ammunition does the 1-7 twist stabilize?

The 1-7 twist rate is versatile across 5.56x45 ammunition, from lightweight varmint rounds to heavier match and duty rounds. It's a proven all-around choice for mixed-use shooting.

What is an 11.5'' barrel good for?

An 11.5'' barrel is compact and handy for home defense, vehicle storage, short-range training, and specialized close-quarters carbine builds. It sacrifices some velocity compared to longer barrels but gains significantly in maneuverability and portability.

Does this come with a gas tube or bolt carrier group?

This is a barrel component only. You will need to source a compatible carbine-length gas tube, upper receiver, and other components separately to build a complete upper.