Gauntlet Arms AR-15 18" 12.7X42, Mid Gas, 1:20T, Phosphate Barrel

The Gauntlet Arms AR-15 18" 12.7X42, Mid Gas, 1:20T, Phosphate Barrel is the perfect addition to any AR-15 build or upgrade, offering exceptional accuracy and reliability in both hunting and tactical situations. Constructed with high-quality 4150 CrMoV Chrome-Moly Vanadium steel, this barrel is built to withstand even the toughest conditions and is finished with a durable Manganese Phosphate finish for excellent corrosion resistance.

With a 1:20 twist rate and an overall length of 18 inches, this rifle barrel is chambered in 12.7x42, a big-bore, high-energy, sporting cartridge that was designed for use in the AR-15 platform, similar to the .458 SOCOM. The H-Bar profile adds extra weight to the rifle, making it more accurate and structurally stronger.

Designed and manufactured by Gauntlet Arms, a leading name in the firearms industry, this barrel comes with a thread pitch of 49/60x20, which is commonly used for barrels with bores larger than .50 caliber or 12.7mm. The .875 gas block diameter allows for easy customization and modification to suit your specific needs.

As a rifle barrel, this Gauntlet Arms AR-15 18" 12.7X42, Mid Gas, 1:20T, Phosphate Barrel is ideal for long-range shooting and precision targeting. It operates under a gas impingement system that cycles gas back through the gas system to assist the bolt carrier in unlocking and extracting the spent cartridge. Whether you're a seasoned shooter or building your first AR-15, this high-performance barrel is sure to exceed your expectations with its exceptional durability, reliability, and accuracy.