The tan slide was a Unity Tactical ATOM slide that I sold. The other slide was sent to ATEI for front serrations and the generic RMR cut. It has a KKM threaded barrel and compensator as well as Ameriglo suppressor height sights. The frame has the Vickers slide stop and magazine release, Agency Arms magwell, SureFire X300U, and overwatch precision trigger and framework. There’s an RMR06 on it now.