Nobody would fault you for bringing a knife to a Swiss Minigun C1ST fight. Recognized by the Guinness Book of World Records as the smallest functional revolver on the planet, this diminutive firearm makes Derringers look like Desert Eagles.
What do you do if you want the stopping power of a shotgun, but also want the convenient of shoving said shotgun down the front (or back) of your pants? Shotgun revolver. Boom.