From experience, whatever the initial outcome, they might have major problems when the kit needs returning to the manufacturer for repair or servicing.
I once worked for a "friendly foreign force" that had legitimately bought Litton NVGs; I was put in charge of them and training crews in their use. At one stage I sent some of the goggles back for repair. Meanwhile the political situation had changed and the USA refused to send them back to us! By good luck, I eventually obtained the help of a friendly US Diplomat to sort the problem out, but even so it took a long time to resolve!