walmart used to sell handguns. there was a murder that involved a gun purchased at a wm and there were some questions about it, but iirc, the laws were properly followed, and it was actually a rifle.
After that incident, wm chose to drop handguns company wide. Some stores with more fully developed sporting goods departments still ordered guns for customers, and would bring in special order handguns.
I'm not going to predict true or not true. firearms and ammunition generate a lot of revenue for a little space. Every box of premium centerfire ammunition generates more revenue and profits than an entire bale of sugar, and takes up a total of 3" of shelf space. They'd love to sell a handgun for $500, bank $100 in profits, put a local dealer out of business, and collect the profits from every item that other store might have sold otherwise.
will the potential for bad publicity outweigh the absolute certainty of revenue, profit, customer appreciation, and all that jazz? Will they risk reputation for money?
Probably. with wm, follow the money and you can predict their actions.