query: instance_of ruger mk iii
supports: A handgun is a firearm designed to be handheld, in either one or both hands. This characteristic differentiates handguns as a general class of firearms from long guns such as rifles and shotguns (which usually can be braced against the shoulder). A semi-automatic pistol is a type of pistol that is semiautomatic, meaning it uses the energy of the fired cartridge to cycle the action of the firearm and advance the next available cartridge into position for firing. One cartridge is fired each time the trigger of a semi-automatic pistol is pulled; the pistol's "disconnector" ensures this behavior. A pistol is a type of handgun. 
  In some usage, the term "pistol" refers to a subset of handguns: those with a chamber integral with the barrel. In other usage, the term is interchangeable with "handgun". The Ruger Mark III is a .22 long rifle semi-automatic pistol manufactured by Sturm , Ruger & Company . It is the successor to the Ruger MK II , and includes several new features . The Ruger MK II is a rimfire single-action semi-automatic pistol chambered in .22 Long Rifle and manufactured by Sturm, Ruger & Company. Ruger rimfire pistols are some of the most popular handguns made, with over three million sold. The .22 Long Rifle rimfire (metric designation: 5.6×15mmR) cartridge is a long-established variety of ammunition, and in terms of units sold is still by far the most common in the world today.
candidates: action ammunition cartridge designation firearm handgun integral pistol position rifle single term time variety
answer: handgun