But why, for shotguns? Suppressors? It ain’t like the movie “No Country for Old Men”!
Not particularly for shotguns, for rifle, especially carbine. On 2nd thought, short barrel shotguns too. Some shotguns have side ports. I’m not thinking of a suppressor but something similar that cuts the blast enough to protect hearing but keeps government permission out of the picture. A cover for the side ports to tune them but still forward discharge.
Didn’t see the movie, can’t reference