Aero Precision 5.5" 9MM CMV Barrel

Aero Precision 5.5″ 9MM CMV Barrel

Compact, Durable & Reliable for AR9, PCC, and EPC Builds

The Aero Precision 5.5″ 9MM CMV Barrel is purpose-built for shooters seeking compact performance and proven reliability in AR9, Pistol Caliber Carbine (PCC), and EPC builds. Precision-machined from 4150 Chrome Moly Vanadium (CrMoV) steel and treated with a QPQ corrosion-resistant finish, this barrel delivers exceptional durability, accuracy, and longevity for modern 9mm platforms.

Key Features:

• Caliber: 9mm
• Length: 5.5 inches
• Material: 4150 CrMoV Steel – Engineered for superior strength and heat resistance.
• Finish: QPQ (Quench Polish Quench) – Provides enhanced corrosion resistance and smoother performance.
• Designed for Glock-Style AR Builds: Fully compatible with Aero Precision EPC receivers and most AR9 platforms.
• Compatible with Most Hollow Point Ammunition: Ensures dependable feeding across various bullet designs.
• Compatible with EPC & Mil-Spec Upper Receivers: Offers versatile build options and reliable fitment.
• Blowback Operation: No gas block or gas tube required for simple, low-maintenance operation.
• Threaded 1/2×28: Standard threading for muzzle devices and suppressor attachments.
• Integrated Barrel Extension: Maintains true overall length equivalence with standard 5.5″ AR barrels.

Important Notes:

• Clearance Warning: Standard 1/2×28 flash hiders may not provide sufficient clearance for a 9mm projectile. Always verify that a 9mm round passes freely through the muzzle device before installation.
• Ammunition Advisory: Certain Winchester hollow point designs may cause unreliable feeding performance.

Engineered for Compact PCC Performance

With its short 5.5-inch profile and rugged CrMoV construction, the Aero Precision 5.5″ 9MM CMV Barrel is the ideal foundation for a compact, high-performance AR9 or EPC build. Designed to deliver accuracy, reliability, and consistency in a lightweight configuration, this barrel excels in both defensive and competitive shooting applications.

NOTE: As of April 1, 2024, all Aero Precision barrels are manufactured by Ballistic Advantage and will feature Ballistic Advantage markings.
Learn more here.