Upgrade your AR-15 build with the precision-engineered Green Mountain 5.56 AR-15 Barrel. This 16-inch M4-profile barrel, machined from premium 416 stainless steel and finished with passivation for superior corrosion resistance, delivers reliable performance in demanding tactical and recreational shooting scenarios. Key Features 416 Stainless Steel Construction with Passivated Finish - Offers exceptional durability, reduced fouling, and long-term resistance to rust and wear, ensuring consistent accuracy over thousands of rounds. M4 Profile Design - Provides an optimal balance of strength and weight distribution for improved heat dissipation during sustained fire while maintaining maneuverability. 1:7 Twist Rate - Stabilizes a wide range of bullet weights, including heavier projectiles, for enhanced accuracy and versatility across various 5.56 NATO and .223 Remington loads. Midlength Gas System - Ensures reliable cycling and smooth operation in standard AR-15 configurations. 0.75-Inch Gas Block Journal - Compatible with most standard low-profile gas blocks for straightforward installation. 1/2x28 Muzzle Thread Pattern - Allows easy attachment of common muzzle devices, flash hiders, and suppressors. Technical Specifications Barrel Length: 16 inches Cartridge Compatibility: 5.56 NATO / .223 Remington Platform: AR-15 Twist Rate: 1:7 Gas System: Midlength Gas Block Journal: 0.75 inches Muzzle Threads: 1/2x28 Finish: Passivated Stainless Steel Weight: 31.4 ounces Why Choose This Barrel for Your AR-15 Whether you're building a reliable home-defense rifle or a precision competition setup, this Green Mountain barrel addresses common pain points like inconsistent accuracy, excessive wear, and compatibility issues. Its robust construction minimizes barrel whip and maintains point-of-impact stability, while the stainless material simplifies cleaning and maintenance. Install this barrel to achieve professional-grade results without compromising on quality or longevity. Invest in the Green Mountain 5.56 AR-15 Barrel today and experience the difference in your next range session or tactical application.