Xur only sold Icebreaker and Gjallaghorn once. When he sold it, I was less than level 20 and didn't know what was strange coins or these weapons. Many weapons Xur sold twice or three times, why Icebreaker and Gjallaghorn didn't? I'm very unlucky at Destiny, if he nevermore sells these weapons, maybe I will never get it. And I know that I'm not the only one that are going through this. Please Bungie, give us an answer about this.
-
Don't expect Xur to sell them so soon, it's not Bungie who's decide wich itens he brings to the tower, it's completely randomic and the chances of the most wanted exotic come are very low.