Product Description The PROOF RESEARCH PR15 barrel in 223 Wylde is engineered for shooters who demand elite-level accuracy and performance from their AR-15 platform builds. Chambered in the versatile 223 Wylde, this 16-inch barrel safely and accurately fires both .223 Remington and 5.56 NATO ammunition, making it an ideal choice for target shooters and tactical enthusiasts alike. Featuring a 1:8 twist rate, this barrel stabilizes a wide range of bullet weights with precision, while the PXT (Polygonal-X Technology) profile balances weight savings with exceptional barrel stiffness and heat resistance. PROOF RESEARCH barrels are renowned for their carbon fiber composite construction and advanced manufacturing processes, delivering match-grade accuracy in a lightweight package. Product Highlights 223 Wylde Chamber: Accepts both .223 Remington and 5.56 NATO ammunition for maximum versatility on the range or in the field. 1:8 Twist Rate: Optimized to stabilize a broad spectrum of bullet weights from 40 to 80 grains, ideal for precision shooting applications. 16-Inch Barrel Length: Strikes the perfect balance between maneuverability and muzzle velocity, compliant for standard rifle configurations. PXT Profile: PROOF RESEARCH&';s proprietary barrel profile engineered for reduced weight without compromising structural integrity or accuracy. Match-Grade Construction: Built to PROOF RESEARCH&';s exacting standards, delivering sub-MOA accuracy and consistent performance under demanding conditions. Specs Brand: PROOF RESEARCH Model: PR15 Manufacturer Part Number (MPN): 152119 UPC: 843068152119 Caliber/Chamber: 223 Wylde Barrel Length: 16 inches Twist Rate: 1:8 Profile: PXT Width: 3.5 inches Length (Packaged): 25.1 inches Height (Packaged): 3.1 inches Weight: 2.475 lbs 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. ]]>