Just talked to one of the managers at Walmart in Monroe. He stated that he is not aware of any change in their ammo policy with the exception of the 2 box limit. His records show that as soon as ammo is available they will be getting it in the store. As far as M&P 15's, he is getting them in at a very slow pace. Got one in last week and of course it sold immediately (at the regular price (I think he said about $997.00). However, they do not put them on display and you have to ask if they have any in the back room. Ammo shelves were of course empty.
