Love them or despise them, mouse guns — aka very small pocket pistols — are an important part of the self-defense landscape by virtue of their sheer numbers. For example, the North American Arms Mini Revolver is a popular handgun that has created a niche all its own. It is offered in several versions, with relatively long barrels as well as the traditional short barrel. We were interested in what type of accuracy a trained shooter could wring out of the Mini Revolver because a 6.5-ounce 22 Magnum just might have appeal as a pocket revolver or backup. We also tested a newcomer and competitor to the Mini Revolver. The PTAC Bullfrog is a copy of the NAA revolver in some ways but is mechanically different in others. We also added a small automatic pistol to the test. The Beretta 950 25 ACP handgun is a widely used pistol and can be called a standard among pocket pistols. For safety, each of the revolvers and the Beretta self-loader demand that the hammer be cocked before the pistol may be fired. Each also features a single-action trigger, although the revolvers must be cocked for each shot. In the end, we thought one gun offers a good-enough chance at stopping hostile action, but to be frank, members of our team would still be reluctant to buy it.