An abbreviation that can stand for various terms including Automatic Colt Pistol, a type of ammunition cartridge designation.
Modern English acronym from the early 20th century, originally from Automatic Colt Pistol, named after the Colt firearms company and their semi-automatic pistol designs.
The .45 ACP cartridge became famous through its use in the M1911 pistol, which served as the standard U.S. military sidearm for over 70 years. Despite being over a century old, this ammunition design remains one of the most popular handgun cartridges worldwide.
Complete word intelligence in one call. Free tier — 50 lookups/day.