I have this model: http://www.airsoftgi.com/product_info.php?products_id=5289
Not the US model though. No stupid red flash hider.
Anyway, unlike another version of the ARES Tavor, this only has a top rail.
Question is, does there exist any side/bottom rails? I think there's side rails, but if yes, could you link to sites that sell them. And they have to sell to other countries.