When you access risk, likelihood is a factor, you mitigate for risks that have a higher likelihood. If I'm worried about protection from being killed I'm more worried about a drunk driver than a meteorite even tho the meteor has a higher lethality. Handguns are lethal enough you get shot by one, the survival rate isn't significantly higher than a rifle especially considering you're statistically more likely to be shot by one. Stabbings tend to be more lethal than either, but and there are more people stabbed then shot by rifle (~1500-3000 in US per year), certainly more the case overseas. Missing forest for the trees.
Are we just being pedantic here? What are you arguing or is the point of argument if you don't want to ban guns or ban the AR-15 or military style weapons specifically? If you're arguing it just to argue I honestly don't see how that's constructive. I'm discussing this in the context of gun violence, in the context of the media hyper focusing on military style rifles when they're not the major cause of deaths, even in mass shootings (which are just as often or more often pistols).