I always thought their promo pics were a bit odd.
This one looks better but it's a first generation prototype (the safety indicator is still at 90 degrees vs 45):
http://4chandata.org/images/threads/...ution(...).jpg
The the extra features are the left hand mag release and the ADAC feature which allows you to lock the bolt to the rear using the magazine release button.
I shoot righty and my wife shoots lefty so that is the reason I picked it up, along with their Raptor charging handle and of course I have an ambi safety.