Product Description The BSF Barrels SF3IYT2279 is a precision-engineered AR-15 barrel built for shooters who refuse to compromise between weight savings and performance. Chambered in 338 ARC and featuring a 14.5-inch barrel length with a 1:8 twist rate, this semi-automatic barrel is purpose-built for the AR-15 platform. BSF&';s signature carbon fiber wrapping technology encases a precision-machined steel core, delivering a dramatic reduction in overall weight without sacrificing structural rigidity, accuracy, or heat dissipation. The threaded muzzle end and AR-15-compatible barrel extension make this a drop-in upgrade for any serious tactical or sporting build. Whether you are running a short patrol rifle configuration or assembling a custom precision AR-15, the SF3IYT2279 delivers the performance and durability demanded by discerning shooters. Product Highlights 338 ARC Chambering: Purpose-built for the 338 ARC cartridge, offering enhanced terminal performance and extended effective range over standard intermediate calibers. Carbon Fiber Wrap Construction: BSF&';s proprietary carbon fiber sleeve dramatically reduces barrel weight while maintaining outstanding rigidity, durability, and heat management. 14.5-Inch Barrel Length: A compact and versatile barrel length optimized for maneuverability in tactical environments without sacrificing ballistic performance. 1:8 Twist Rate: Precisely rifled at 1:8 to provide excellent stabilization for the full spectrum of 338 ARC projectile weights. AR-15 Semi-Auto Compatible: Engineered specifically for the semi-automatic AR-15 platform, ensuring reliable cycling, feeding, and drop-in compatibility. Specs Brand: BSF BARRELS MPN: SF3IYT2279 UPC: 615678941557 Gun Platform: AR-15 Caliber: 338 ARC Action: Semi-Auto Barrel Length: 14.5" Barrel Length Range: 14" to 14.99" Twist Rate: 1:8" Construction: Carbon Fiber Wrapped 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.