Small, double-barreled handguns chambered for larger-than-typical cartridges are often referred to by this terminology. These firearms are generally characterized by their compact size, simple operation, and intended use in close-quarters self-defense scenarios. A typical example might be a two-shot pistol chambered in .45 Colt or .410 gauge shotgun shells.
The appeal of such firearms rests on their concealability and the stopping power offered by the potent cartridges they fire. Historically, small, easily concealed handguns have served as a means of personal protection. Modern iterations leverage advancements in metallurgy and ammunition technology to deliver significant defensive capability in a compact package. This combination of power and portability makes them a topic of considerable discussion among firearms enthusiasts and those concerned with personal security.