Wal-mart should have lots of it.
I do know, that in the paint area my wal-mart almost fooled me into thinking they had hardly any paint. They had a stand with 3 colors...then nowhere near that stand they had full shelf of paint, if you've found the full shelf and it's the camo paint you're looking for..Ask a stocker or look a little harder...Maybe they don't sell a lot of the flat camo paints so they keep very little on hand and forgot to put a new box of it out when it sold off the shelf? It should be there though.