"Stay away from the anti-guns"

I dreamt that I was at some old TV western town, and these two cowboys riding on horses approach me. The leader of the two was blonde, mid-30s with a five o'clock shadow. He rides up close to me, looks at me and says, "Stay away from the anti-guns."

I then turned to face his partner who was right behind me on his horse, and he pointed his shotgun at me which is hard to describe how it looked. It wasn't a shotgun in the traditional sense. The double-barrel was only about 6 inches long, but when the gun was pointed towards me, the barrel was facing in a left-right direction, as opposed to facing directly at me. In the center of the barrel was a circular opening where apparently the blast shot from.

So his after the leader says, "Stay away from the anti-guns", and I turn to face his partner, who points his rifle at me and shoots. The loud blast woke me up.

I have no idea who/what the "anti-guns" are. I don't own a gun, I don't hunt, and I don't keep up with the NRA.