Why didn’t he pick up the gun when he bought it? Was he having the dealer accessorise it?
In this Breitbart article the reason given is that a customer either traded or sold the gun to the gun store. The store owner put a 20 day hold on it to make sure it doesn't show up as stolen or linked to a crime.
Mark Kelly can pick it up after the 20 day hold.
Maybe he's trusting Eric Holder to not make waves about him committing a felony by lying on his form 4473. Either Kelly perjured himself by saying "yes" to "are you the actual purchaser?", or said "no", in which case the store could not sell him anything. But Kelly was "doing his duty" in an attempt to blame legal gun dealers and citizens, just as DOJ and BATFE were doing with "Fast and Furious".
Didn’t think of that. His plans probably changed whe he got caught buying it.