Experience superior craftsmanship with the Daniel Defense DD4 RIII Upper Receiver Group, designed for precision and reliability in every shot. Built around a 16-inch Cold Hammer Forged Government Profile barrel, this upper features a 1:7 twist rate and a chrome-lined, Mil-Spec heavy phosphate-coated finish for unmatched durability. The mid-length gas system ensures a smoother recoil impulse, enhancing accuracy during rapid-fire scenarios. Paired with the innovative 12.5-inch RIS III M-LOK handguard, modeled after the SOCOM-approved RIS II, this upper offers lightweight versatility and robust mounting options. The GRIP-N-RIP Charging Handle, CNC machined from 7075-T6 aluminum, provides seamless operation, while the Mil-Spec M16 bolt carrier group guarantees consistent performance. Crafted in the USA with premium materials like 7075-T6 aluminum for the upper receiver and 6061-T6 aluminum for the handguard, this upper is built to withstand the toughest conditions. Perfect for tactical enthusiasts and competitive shooters, the DD4 RIII Upper Receiver Group delivers top-tier functionality. P urchase yours today at Battlehawk Armory and enhance your AR-15 build with Daniel Defense quality! Specifications: Mounting Systems: M-Lok Caliber: 5.56mm NATO Material: Chrome Moly Vanadium Manufacturing Process: Cold-Hammer Forged Twist Rate: 1:7" Gas System: Mid-Length Barrel Length: 16" Barrel Profile: Government Manufacturer: Daniel Defense