RISE Armament(R) Watchman Complete Upper Receiver is an AR-15 upper assembly chambered in 6mm ARC with an 18 in barrel and Gray Cerakote finish. Designed for compatible AR-15 lower receivers this configuration combines an aluminum upper receiver with a rifle-length barrel for precision-oriented shooting applications. The assembled upper provides a foundation for a 6mm ARC rifle configuration.Key Features18 in barrel chambered in 6mm ARCComplete upper receiver assemblyGray Cerakote finishAluminum upper receiver constructionDesigned for compatible AR-15 lower receiversWatchman upper receiver configurationSuitable for precision shooting and target applicationsRISE Armament(R) manufactures firearm components and accessories with an emphasis on precision engineering and dependable performance. The company develops products for modern sporting rifle platforms using practical designs and manufacturing processes. RISE Armament focuses on quality construction and functional improvements for shooting enthusiasts and firearm builders.