Didn't even know Google had 'Google Shopping'
(Bing/duckduckgo convert here)
If you're going gun shopping online, it might halt a few of those with questionable intelligence who can't work out alternative means to find a store (which is a good thing in itself
) - but overall it's more of a token move than anything. It's hardly going to have a huge impact.
Topic aside, I'm not a fan of the censorship angle.