The Savage Model 1907 is a semi-automatic pocket pistol produced by the Savage Arms, from 1907 until 1920. It was chambered in .32 ACP and, from 1913 until 1920, in .380 ACP. Although smaller in size, it is derived from the .45 semi-automatic pistol Savage submitted to the 1906-1911 US Army trials to choose a new semi-automatic sidearm. After several years of testing the Savage pistol was one of two finalists but ultimately lost to the Colt entry, which became famous as the Colt Model 1911. A total of 181 of these .45 ACP pistols were returned to Savage after the testing and sold on the civilian market.

The Colt M1911 is a single-action, recoil-operated, semi-automatic pistol chambered for the .45 ACP cartridge. The pistol's formal U.S. military designation as of 1940 was Automatic Pistol, Caliber .45, M1911 for the original model adopted in March 1911, and Automatic Pistol, Caliber .45, M1911A1 for the improved M1911A1 model which entered service in 1926. The designation changed to Pistol, Caliber .45, Automatic, M1911A1 in the Vietnam War era.