Aero Precision 16" 5.56 M4 CMV Barrel | Carbine Length

Aero Precision 16″ 5.56 M4 CMV Barrel | Carbine Length

Durable, Accurate & Ready for Your AR-15 Carbine Build

The Aero Precision 16″ 5.56 M4 CMV Barrel is precision-machined for shooters who expect dependable accuracy, rugged durability, and mil-spec reliability from their AR-15 platform. Crafted from 4150 Chrome Moly Vanadium (CrMoV) steel and treated with a QPQ (Quench-Polish-Quench) nitride finish, this barrel delivers long-lasting resistance to heat, corrosion, and wear—ideal for high-volume training, defensive builds, and general-purpose carbines.

Aero Precision manufactures this barrel to mil-spec standards, ensuring consistent quality and compatibility across a wide range of AR-15 components. The M4 barrel extension improves feeding reliability and supports smooth operation with modern 5.56 NATO ammunition. With its balanced 16-inch length and classic M4 contour, this barrel provides excellent handling characteristics while maintaining the rigidity necessary for repeatable accuracy.

Reliable Cycling With Carbine-Length Gas System

The carbine-length gas system is known for its proven reliability across diverse ammunition types and environmental conditions. Its slightly higher operating pressure enables consistent cycling, even in rifles subjected to dirt, fouling, or harsh field use. This makes the Aero Precision 16” CMV barrel a dependable choice for:

• Training and tactical carbines
• Home-defense rifles
• General-purpose AR-15 builds
• Law enforcement or preparedness-focused applications

Combined with the QPQ finish, the carbine-length system offers smooth operation and reduced friction throughout the gas system, supporting long-term reliability and maintenance efficiency.

Precision-Tuned for 5.56 NATO Performance

The 1:7 twist rate is optimized for stabilizing the full spectrum of modern 5.56 NATO and .223 Remington bullet weights, including heavier 62–77 grain projectiles favored for defensive or duty applications. This versatile twist rate enhances accuracy potential across a wide variety of loads, making the barrel suitable for both close-quarters performance and medium-range engagements.

Key Features & Benefits

• Caliber: 5.56 NATO – Compatible with both 5.56 NATO and .223 Remington ammunition.
• Length: 16 inches – Legal, balanced, and optimized for all-around AR-15 performance.
• Material: 4150 CMV Steel – Provides exceptional strength and heat tolerance.
• Finish: QPQ Nitride – Enhances corrosion resistance, hardness, and surface lubricity.
• Gas System: Carbine-Length – Offers proven reliability and consistent cycling.
• M4 Barrel Extension: Improves feeding reliability and compatibility with mil-spec uppers.
• Twist Rate: 1:7 – Ideal for modern defensive and match-grade bullet weights.
• Threaded 1/2×28: Accepts standard muzzle devices and suppressor mounts.
• Mil-Spec Construction: Built for high round counts and sustained accuracy.

Built for Versatile Shooting Applications

The Aero Precision 16″ 5.56 M4 CMV Barrel provides an excellent foundation for shooters who want a rugged, dependable, and accurate carbine. Whether you’re assembling a new AR-15 or upgrading an existing rifle, this barrel delivers the performance required for:

• Defensive and tactical rifles
• Recreational or training setups
• High-volume shooting environments
• All-purpose builds that demand reliability

With its precision-machined foundation, enhanced QPQ finish, and trusted carbine gas system, this barrel exemplifies Aero Precision’s commitment to quality and performance in AR-15 components.