Quick Question about the AK Ob's Arrival..

Uh I'm kind of new to this preordering thing (in-fact this is my first time preordering a vvip, and it being the ak obs).. So my question is... is the ak obs going to be released directly after the pre-sale ends or do i have to wait a periods worth of time after the presale for it to arrive? Better yet. what time do the ak obs arrive..?