PROOF Research PR15 223 Wylde 14.5″ Carbon Fiber Barrel – 1:7 Twist PXT Profile

Upgrade your AR-15 with the PROOF Research PR15 Carbon Fiber Barrel in 223 Wylde, chambered for maximum versatility with both .223 Remington and 5.56 NATO ammunition. This 14.5-inch barrel features a 1:7 twist rate and PROOF’s proprietary PXT (Polygonal Extended Twist) profile, delivering exceptional accuracy, reduced weight, and superior heat dissipation compared to traditional steel barrels.

PROOF Research is renowned among military, law enforcement, and competitive shooters for setting the standard in carbon fiber wrapped barrel technology. The 223 Wylde chamber offers tighter tolerances than a standard 5.56 NATO chamber while maintaining reliable feeding, making it ideal for precision-focused AR builds. The 1:7 twist stabilizes a wide range of projectiles, from 55-grain loads up to heavy 77-grain match bullets.

Key Features:
• Chamber: 223 Wylde – compatible with .223 Rem and 5.56 NATO
• Length: 14.5 inches
• Twist Rate: 1:7 (7TW)
• Profile: PXT (carbon fiber wrapped)
• Manufacturer: PROOF Research
• SKU: 152065

Whether you’re building a lightweight patrol rifle, a competition AR, or a precision-driven short-barrel build, this PROOF Research barrel delivers the performance and durability professionals demand.

Order online at Deep Roots Rifle Co or visit our gun store in Eustis, Florida, where our knowledgeable staff can help you complete your custom AR build with the right components to match.