That's side by side, double barrel, coach guns. Some have double triggers, some single, some have exposed hammers, etc. Saw an article on a Stoeger double by Clint Smith who seemed to like it as a home defense shotgun. I know they've been around a long time; probably used more for hunting than anything else. I'm curious about the inner workings and manual of arms for these guns; also appreciate opinions about usefulness for personal/home defense. Online info sources appreciated as well. Thanks in advance.