Green Mountain 9mm AR-15 Barrel 10.5" M4 Nitride

Upgrade your AR-15 platform with the Green Mountain 9mm AR-15 Barrel, a precision-engineered 10.5-inch M4 profile component designed specifically for reliable 9x19mm blowback operation. This nitride-finished barrel delivers exceptional durability and performance for tactical, home defense, or recreational shooting applications.Key Features and Benefits Nitride (Melonite) Finish: Provides superior corrosion resistance, reduced friction, and extended barrel life compared to traditional finishes, ensuring consistent performance in demanding environments. M4 Profile Construction: Balances lightweight handling with structural integrity for improved maneuverability without sacrificing accuracy or heat dissipation. 1:10 Twist Rate: Optimizes stabilization for a wide range of 9mm bullet weights, promoting tight groupings and reliable feeding in blowback systems. 1/2x36 Muzzle Threading: Allows easy attachment of compatible muzzle devices for recoil management and sound suppression options. Blowback Gas System: Eliminates the need for a gas block, simplifying assembly and enhancing reliability in pistol-caliber carbine configurations.Specifications Barrel Length: 10.5 inches Cartridge Compatibility: 9x19mm / 9mm Platform: AR-15 Gas System: Blowback (N/A gas block journal) Twist Rate: 1:10 Muzzle Thread Pattern: 1/2x36 Finish: Nitride / Melonite Barrel Profile: M4 Weight: 22 ozWhy Choose This ProductWhether you're building a compact 9mm AR pistol or carbine, this barrel addresses common pain points like excessive wear from high-volume shooting and the need for quick, dependable cycling. The nitride treatment resists fouling and abrasion, while the M4 contour maintains balance for rapid target acquisition. Its button-rifled precision supports sub-MOA potential with quality ammunition in a purpose-built 9mm platform.Ideal for enthusiasts seeking a factory-direct, high-quality component from a trusted American manufacturer known for consistent barrel production.