Arms dealer

[bigdogg]

I was wondering does anyone have a clue what will happen to the weapons grinds when you upgrade them in the arms dealer mission, because i heard a rumor that you cant upgrade a weapon if it has grins on it?

[Magician]

I was wondering does anyone have a clue what will happen to the weapons grinds when you upgrade them in the arms dealer mission, because i heard a rumor that you cant upgrade a weapon if it has grins on it?

I've heard that it resets to 0/10. So don't trade in those 10/10 weapons.

[beatrixkiddo]

You can trade grinded weapons in, but they'll become 0/10 afterwards.