text: The Pistole Parabellum, also known in the United States as just the Luger, is a toggle-locked recoil-operated semi-automatic pistol produced in several models and by several nations from 1898 to 1948. It was one of the first semi-auto pistols to use a detachable magazine housed in the pistol-grip. The design was first patented by Georg Luger as an improvement upon the Borchardt Automatic Pistol, and was produced as the Parabellum Automatic Pistol, Borchardt-Luger System by the German arms manufacturer Deutsche Waffen und Munitionsfabriken (DWM). The first production model was known as the Modell 1900 Parabellum. Later versions included the Pistol Parabellum Model 1908 or P08 which was produced by DWM and other manufacturers. The first Parabellum pistol was adopted by the Swiss army in May 1900. In German Army service, the Parabellum was later adopted in modified form as the Pistol Model 1908 (P08) in caliber 9×19mm Parabellum.
  The Colt Model 1911 is a 7+1-round, single-action, semi-automatic, magazine-fed, recoil-operated pistol chambered for the .45 ACP cartridge. It served as the standard-issue sidearm for the United States Armed Forces from 1911 to 1986, however, due to its popularity, it has not been completely phased out. Designed by John Browning, the M1911 is the best-known of his designs to use the short recoil principle in its basic design. The pistol was widely copied, and this operating system rose to become the preeminent type of the 20th century and of nearly all modern centerfire pistols. It is popular with civilian shooters in competitive events such as USPSA, IDPA, International Practical Shooting Confederation, and Bullseye shooting. Compact variants are popular civilian concealed carry weapons in the U.S. because of the design's relatively slim width and stopping power of the .45 ACP cartridge.