I've lived in several states and I would not really agree with that. Where I lived, for most of my life, the people most likely to own guns were hunters. Fifty years ago, hunters owned a few guns for hunting, and that was it. They were unlikely to own a handgun, and certainly nothing military. Just hunting guns. Next most likely types to own guns were criminals or those on the edge of the law. I'm serious, I lived in a Mafia area, also biker gangs, inner city gangs, etc. These people had legal and illegal guns, mostly illegal.

Now it is a totally different world of gun owners in the US. People own arsenals of handguns and military type guns. I don't know any "moderate dems" who own guns like that. Most Dems I've known in my life weren't hunters, that's a country thing. Maybe in rural areas with hunting, you might find some liberal rednecks with guns. But most Dems interpret the second amendment in its strictest sense. That means that guns are for military and the police. A few hunting rifles are okay. And really strict controls on who gets to own them, and what type.