In recent years, the trend in gun sales for self-defense has been smaller firearms for carrying, Georgia Gun Store owner Mike Weeks said. “As we have more and more shooting events, people are more concerned about their safety,” he said. Handguns of the 9mm caliber have been popular, Weeks said, as current events “have people concerned that they’re going to be at the grocery store or they’re going to be at the movie theater and someone’s going to start shooting.”