Pistol caliber barrels by New Frontier Armory are engineered to elevate the performance of your AR platform. Offered in popular calibers like 9mm and .40 S&W, these barrels are available in a range of lengths, catering to diverse shooting needs—from close-quarters action to more versatile applications. Constructed from high-quality materials, New Frontier Armory pistol caliber barrels deliver exceptional durability and consistent performance. Whether you're customizing an AR pistol or enhancing your current setup, selecting the right pistol caliber barrel is crucial for maximizing accuracy and reliability.