The Geissele Automatics MK16 URG-I Complete Upper Receiver is a ready-to-install AR-15 upper built around a 14.5-inch government contour 5.56mm NATO barrel with a 1-7 twist rate. It pairs the URG-I barrel setup with Geissele’s MK16 handguard and a durable anodized DDC finish for a compact, service-style build.

Key features

• 14.5-inch government contour 5.56mm NATO barrel for a balanced compact configuration
• 1-7 twist rate for stabilizing a wide range of 5.56mm loads
• Geissele MK16 rail for a rigid, modular mounting platform
• Anodized DDC finish for corrosion resistance and a consistent color match
• Complete upper receiver configuration for a straightforward build

Upgrade your AR-15 build with a URG-I style Geissele MK16 complete upper receiver built for a dependable service-oriented setup.