Check the return policy of Optics Planet if I recall correctly your only recouse is to return it to the factory, there are no refunds!
I recently purchased a $5000 FLIR unit, it is not a NV scope it is a hand held 'camera' It works day and night in smoke and light fog/rain. Because it works off heat vegitation and camoflage do not affect it.
If you go with a gen. 3 NV scope stick with the 2X model it will save you several hundred dollars
BTW I bought my unit through Sportsmans Guide, they sell units well over $7000