Well, as far as I know, Walmart is a great place full of many kinds of glasses, however, shooting glasses are kind of special instruments. I am afraid they rarely have that on offer. But I can recommend some place for you. Yes, Alibaba, which is a fantasitc e-commerce website for both B2B and B2C. You can find loads and loads of shooting goggles over there of different purposes and functions. Just type in key words, shooting goggles. Hope you find this useful.
Yes, there are shooting glasses at Walmart. You could go to their online store to have a check because the price there is suitable. And the delivery time there is fast. You could go there and have a look. You could base on your favors to choose the suitable one with the suitable colors and materials.