Very first retainers quick exploration reward: darklight band of striking

So today was the first time I was able to give my retainer the quick exploration. I was pretty amazed to see him come back with a "darklight band of striking" Is this pretty common reward for doing quick explorations?

edit: So after hitting up google a bit I don't even see this ring as a reward for quick exploration so I guess I'm just rng lucky. Also this is my first retainer lvl i6 and he is a DoW Lancer lvl 13. Not sure if any of that helps seeing that quick exploration I guess is a crap shoot.