The Rosco 20 inches .223 Wylde Barrel is engineered to provide precision carbine shooters with the ultimate option for extended-range accuracy in this chambering. Whether you are building a longer version of the MK12 platform or upgrading your 20 inches carbine for DCM and National Match competitions, this barrel delivers consistent long-range performance with every shot. As part of Rosco Manufacturing's "Purebred" series, it represents a commitment to precision and quality manufacturing. After years of producing barrels for top-tier OEMs, Rosco took a step back to refine every aspect of the barrel-making process, resulting in a product that exceeds expectations straight out of the box. Each Purebred barrel is crafted from start to finish in Rosco's Rhode Island facility, beginning as a raw 416R stainless steel blank and undergoing rigorous quality control to ensure exceptional performance. By producing both barrel blanks and extensions in-house, Rosco upholds the highest standards of durability and reliability. Designed to thrive under demanding conditions, the Purebred series redefines expectations, delivering a barrel that lets performance speak for itself. The 416R stainless steel construction ensures long lasting durability and excellent performance under high stress The 80 grit bead blast corrosion-resistant finish offers durability and protection from wear and tear The 1:7 twist rate ensures stabilization of heavier bullets for better performance The item includes 1/2-28 threads for standard muzzle attachments Compatible with 3/4 inches gas blocks, ensuring proper fit and compatibility with most standard gas system components