The Geissele Automatics MK16 14.5'' URGI Upper is a complete upper receiver designed for AR15 platforms. It features a 14.5-inch CHF barrel with a 1-7 rate of twist, ensuring reliable performance with .223 Rem and 5.56 NATO ammunition. The upper is finished in DDC, providing a durable and visually appealing exterior.Key FeaturesBarrel Length: The upper is equipped with a 14.5-inch CHF barrel.Caliber: Chambered in .223 Rem/5.56 NATO for versatility.Rate of Twist: Features a 1-7 twist rate for optimized stability.Barrel Finish: Finished in black for enhanced durability.Style: Complete upper receiver, ready for installation.