Is Buying Call of Duty a Moral Choice?

If you play video games, you've shot a gun. And those guns are REALISTIC. So real that many are actually LICENSED by IRL arms dealers. Which means that when you buy a video game, you're also putting money in the pockets of those gun manufacturers. That's fine and dandy if you're a fan of guns, but if you are someone who considers themselves anti-gun, this creates quite the moral quandary.