Wraith

Wraith is a term that resides on special edition weapons only found in Events, similar to Vandal, Prime or Prisma. Seems to be attuned to Grineer weapons, or weaponry not based on the technology of the Corpus.

As with Vandal  weapons, the coloring cannot be changed on Wraith weapons. However, some skins can be applied to certain weapons in the group, which then allows them to be colored as normal.