This Rosco Manufacturing Purebred 223 Wylde barrel features an 18-inch length and a 1:7" twist rate. The barrel is crafted from nickel boron stainless steel for enhanced durability and performance.Key FeaturesCaliber: Designed for .223 Wylde, accommodating both .223 Remington and 5.56 NATO cartridges.Barrel Length: The 18-inch length is optimized for precision shooting and effective accuracy.Twist Rate: A 1:7" twist rate is tailored for stabilizing heavier bullets, improving overall performance.