Off hand, no, besides any products I would pull off of eBay and the likes would probably feature a stock G&P photo.
My personnal rule of thumb is to always buy my G&P products from known retailers (redwolf, UNC, WGC etc...).
Not that it means the products you're considering are bad, they just aren't G&P. They might come from the same OEM factory though.
Test it, if you like it, get it.
Besides, no G&P Aimpoint ever featured trades, so unless it would be a regular model with "aftermarket" trades... But that would only raise it's price, which isn't the case here.