Pocket Pistol

A pocket pistol is an American term for any small, pocket-sized semi-automatic pistol or, less-popular, any other handgun (e.g., derringer, or small revolver) of (most commonly) small caliber, suitable for concealed carry in either a front or rear pocket of a pair of trousers, or in an exterior coat pocket. Some consider the term solely applicable to hammerless handguns that are striker-fired in semi-automatic blowback configurations. However, with the advent of newer and smaller double action only (DAO) semi-automatic pistol designs, some locked breech concealed-hammer pistol designs are now also called pocket pistols.

In general use, the term pocket pistol is not considered a pejorative term. However, some pocket pistols, often those of lesser caliber, are referred to as mouseguns, which sometimes is considered a pejorative term among those who prefer larger caliber pistols, although not among those who prefer smaller caliber pistols for deeper concealment.