You can always Find Xur and his inventory at FindXur.com, every Friday.
Xur is on Nessus, at Watcher’s Grave. He will remain there until 12:00 PM EST, January 2, 2018. Discuss his gear and more in Discussions.
Vigilance Wing [Exotic Pulse Rifle]
Foetracer [Exotic Hunter Helmet]
Peacekeepers [Exotic Titan Leggings]
Wings of Sacred Dawn [Exotic Warlock Helmet]