The senior management of Costco being of a very liberal persuasion, I cannot imagine ANY Costco carrying guns or ammunition. I very rarely visit Costco, other than maybe to make a cost comparison. When I do, I use my B-I-L's card as I refuse to even get a membership. I have a Sam's membership, but they don't sell any guns or ammo either, at least I have never seen any in Texas that did.