Product Description The Rosco Manufacturing Purebred 18" SPR .223 Wylde Barrel is engineered to elevate the performance of the classic Special Purpose Rifle platform. Featuring the SPR contour, this barrel strikes an ideal balance between weight and rigidity, making it especially effective for cold bore shots on target. Gas ports are precisely sized to accommodate the most popular precision bullet weights as well as suppressor use, ensuring reliable cycling and consistent performance. Constructed from premium 416R stainless steel and finished with a bead blast treatment, this barrel is an outstanding choice for any 18" SPR or Designated Marksman Rifle build on the AR-15 platform. Product Highlights SPR contour design optimized for cold bore precision shooting while maintaining an ideal weight-to-rigidity balance Rifle-length gas system for smooth, reliable cycling across a wide range of ammunition Gas ports sized for the most popular precision bullet weights and suppressor-compatible use Premium 416R stainless steel construction paired with a durable bead blasted finish 1/2x28 muzzle threading and 1:7 twist rate for compatibility with the AR-15 platform Specs Brand: Rosco Manufacturing Model: Purebred Caliber: .223 Wylde Barrel Length: 18" Gas System: Rifle Length Muzzle Thread: 1/2x28 Twist Rate: 1:7 Construction: 416R Stainless Steel Finish: Bead Blasted Fit: AR-15 UPC: 181969500302 MPN: PB-18-SPR-223W-7-R Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.