The Yankee Hill Machine AR-15 16.5" Threaded Fluted Barrel 1-8 Twist brings a balanced blend of durability and accuracy to your next rifle build. Machined from 4140 chrome moly steel with a diamond fluted profile, this 5.56x45mm NATO barrel uses a Melonite QPQ treatment for enhanced surface hardness and corrosion resistance. The 16.5" length, carbine gas system, and 1/2"-28 threaded muzzle make it ready for your preferred muzzle device while maintaining reliable function.

This barrel’s 1-in-8" twist rate is optimized for a wide range of 5.56 NATO and .223 Remington bullet weights, making it a versatile choice for general-purpose AR-15 setups. Whether you are building a range rifle, a competition carbine, or a field-ready hunting rig, the combination of fluting, moderate weight, and precise chambering supports consistent performance. Yankee Hill Machine’s long-standing reputation for robust, well-machined components is reflected in the fit, finish, and reliability of this barrel.

• Manufacturer: Yankee Hill Machine
• Model: AR-15 16.5" Threaded Fluted Barrel 1-8 Twist (YHM-48-TF)
• Caliber: 5.56x45mm NATO
• Barrel Length: 16.5"
• Gas System Length: Carbine
• Muzzle Thread: 1/2"-28
• Twist Rate: 1 in 8"