Resistance Ring.

You receive a box but you're not able to open it.
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This box is the "Mechanic Box."
Just to clarify, for theo ones who are thinking it gives the Mech gun, it doesn't.
It gives a random level 50 mechanic equip, can give two of those. (Engine, bla bla bla).
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The mechanic gun comes out from that first box you used on your Resistance Characters. And you only can obtain it if you haven't used such box previously on a BM or a WH.
I got that ring on KMS, and Ferdi was supposed to give it to you. That box is irrelevant.

Can someone confirm this?

I think I just messed up.