Product Description The Proof Research PR15 barrel in 223 Wylde is a precision-engineered stainless steel barrel built for AR-15 platform rifles. With a 14.5-inch barrel length, a 5/8-24 muzzle thread, and a 1:7 twist rate, this barrel is purpose-built for shooters who demand exceptional accuracy and consistency. Proof Research is renowned for using premium materials and advanced manufacturing processes, including their carbon fiber and stainless steel barrel technology, ensuring each barrel delivers tight tolerances and long-lasting durability. The 223 Wylde chamber is designed to deliver match-grade accuracy with both .223 Remington and 5.56 NATO ammunition, making this barrel a versatile and high-performance choice for competitive shooters and serious enthusiasts alike. Product Highlights 223 Wylde Chamber: Optimized for accuracy with both .223 Remington and 5.56 NATO ammunition, combining the best of both calibers for maximum versatility. 14.5-Inch Barrel Length: Compact and maneuverable, ideal for tactical and close-quarters applications without sacrificing ballistic performance. 5/8-24 Muzzle Thread: Compatible with a wide range of muzzle devices including suppressors and compensators for added flexibility. 1:7 Twist Rate: Stabilizes heavier projectiles effectively, making it suitable for a broad range of bullet weights. Proof Research Quality: Built to the exacting standards that have made Proof Research a leader in precision barrel manufacturing. Specs Brand: Proof Research Model: PR15 Caliber / Chamber: 223 Wylde Barrel Length: 14.5 inches Muzzle Thread: 5/8-24 Twist Rate: 1:7 Platform: AR-15 (PR15) MPN: 143377 UPC: 843068143377 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. ]]>