Ballistic Advantage Modern Series 16 in 5.56 M4 Carbine Barrel

The Ballistic Advantage Modern Series 16 in M4 profile barrel is designed for AR-15 platforms chambered for .223 Rem/5.56 NATO. It is machined from 4150 Chrome Moly Vanadium steel and finished with a QPQ corrosion-resistant process. The barrel uses a carbine-length gas system with a .750 in gas block journal and features a QPQ-coated M4 feed ramp extension. A 1:7 rate of twist supports a wide range of modern projectile weights suitable for precision and duty-oriented builds.

Key Specifications

• The cartridge is **.223 Rem/5.56 NATO** for standard AR-15 compatibility.
• The barrel length is **16 in**, a carbine-length option for balanced handling.
• The contour is an **M4 profile** for established AR-15 geometry.
• The rate of twist is **1:7** to stabilize a broad range of bullet weights.
• The material is **4150 Chrome Moly Vanadium steel** for strength and durability.
• The finish is **QPQ** (salt bath nitrocarburizing) for enhanced corrosion resistance.
• The gas system length is **Carbine**, for standard carbine gas timing.
• The gas block journal diameter is **.750 in** for common carbine blocks.
• The muzzle is threaded **1/2-28** for compatibility with common muzzle devices.
• The barrel weight is **28 oz**, offering a balance between rigidity and maneuverability.

Purpose-built for reliable service in AR-15 carbine builds, this Ballistic Advantage Modern Series barrel combines proven materials and a corrosion-resistant QPQ finish to deliver consistent performance across a variety of applications. Its M4 contour and carbine gas configuration make it a practical choice for shooters seeking a dependable, properly specified barrel for general-purpose, precision-minded, or duty-oriented assemblies.