Thanks.
It has been awhile since I bought a lot of guns at one time. The store has the right to refuse to sell to anyone and I can understand this. (Look at Fast and furious)
Either way, when the purchase is made, the ATF questionnaire is filled out and called in. If it raises a red flag, I can understand the "Do not Sell". But this was a situation in which the store definitely overstepped it's bounds the the "manager/cashier" needs to be cashiered and out looking for a new job.
If he still works at AAFES, I would make it a point to smile and say hello to him every time I walked in the store.