Ruger AR Upper Receiver Assembled

Ruger AR Upper - CompleteIMPORTANT: These components are built to Ruger's standard of rugged reliability and are intended for use in AR-15 pattern firearms. However due to the wide variety of firearms and components available in the marketplace Ruger cannot guarantee that these components are compatible with all firearms. We cannot guarantee performance or fit and recommend installation by a qualified gunsmith to ensure maximum safety and performance.