Sons Of Liberty Gun Works Combat 5.56X45Mm Nato 11.5'' Gov Profile 1/2''X28 1-7 Twist

The Sons of Liberty Gun Works Combat 5.56 NATO barrel in 11.5-inch length is built for shooters who demand a compact platform without compromise on reliability. This government-profile barrel with carbine-length gas system delivers the versatility Sons of Liberty is known for—it runs effectively both suppressed and unsuppressed, and it does so without requiring an adjustable gas block. Whether you're building a short-range tactical rifle, a home-defense AR, or a suppressed precision gun, this barrel offers the duty-grade construction professional and civilian shooters have come to trust.

The 1/7 twist rate and 1/2x28 muzzle thread are industry-standard for 5.56 NATO, ensuring broad accessory compatibility. At 11.5 inches, you get a balance between handling and velocity that makes sense for intermediate-distance work, particularly in confined spaces or from vehicles. Sons of Liberty's reputation for combat-ready barrels means this is engineered for real-world use—not a bench-rest special, but a barrel that handles variable ammunition and shooting conditions without finicky tuning.

If you're upgrading an existing upper or starting from scratch, this barrel integrates cleanly into standard AR-platform builds. The government profile and carbine-length gas tube are proven geometry; pair it with a compatible bolt carrier group and upper receiver, and you're looking at a reliable, no-frills foundation for a working rifle.

Key Features

• 11.5-inch combat-ready barrel—compact length ideal for vehicle carry, home defense, and CQB setups
• Government profile construction—duty-grade durability with standard AR-15 compatibility
• Carbine-length gas system—proven reliability with or without a suppressor
• 1/7 twist rate—handles a full range of 5.56 NATO loads from 55gr to 77gr
• 1/2x28 muzzle thread—standard for modern suppressors and brakes
• Optimized for suppressed and unsuppressed use—no adjustable gas block required

Specifications

Frequently Asked Questions

Will this barrel work with or without a suppressor?

Yes. The carbine-length gas system is tuned to function reliably both suppressed and unsuppressed without requiring an adjustable gas block. This is one of the design advantages Sons of Liberty built into the Combat Grade barrel.

What muzzle devices are compatible?

The barrel features a 1/2x28 muzzle thread, the standard for 5.56 NATO. This accepts any suppressor, muzzle brake, or flash hider with that thread pitch.

Is this barrel suitable for suppressed builds?

Yes. The 11.5-inch length with carbine-length gas is well-suited for suppressed configurations and will function without tuning adjustments. Many shooters prefer this barrel specifically for suppressed AR platforms.

Will this fit my AR-15 upper receiver?

This barrel is designed for standard AR-15 platforms using a carbine-length gas tube. Confirm your upper receiver accepts a .750-inch barrel journal (government profile standard). You'll need a compatible bolt carrier group and upper assembly to complete the build.