[MultipleParadox]

I don't know this site but it does indeed look fishy.
A quick lookup shows that they are mostly "wholeseller" doing drop shipping (you oculd piggyback on their service and sell their product to others, have them ship what they buy from you to your customers directly), which is in my opinion a not so good business practice, but that's me.

Sure thing is, it's a chinese site, items coming from China, be prepared to get a load of clone. Although it doesn't mean it is, the chances are just greater IMO. At this price I would definitely shop elsewhere

Take a look a DVOR.com, they seem much more legit (you have to subscribe, they ave daily sale over range of items over limited period of time). I've seen authentic (supposedly) Acog listed not so long ago at similar prices if I'm correct.

I don't know about US exportation laws over this kind of item though, might be prohibited from export and/or prohibited from import over here. I'm sure someone can shed some light over this here