I'm sure you already considering this, but here's a ticket anyway: you might want to consider delaying NVG's in the upcoming patch until duping is fixed.

Currently the AR's are exclusively in the hands of dupers, and the current loot economy is "poor" to say the least, BUT the game is still playable as most of the duped/"extinct" items (AR's) can be countered with the other available guns in the game. NVG's cannot be countered, and if they fall in the hands of dupers, night time play will become unplayable.