The Colt Single Action Army, also known as the Peacemaker, is a revolver designed by Samuel Colt and first produced in 1873. It is famous for its distinctive single-action mechanism, which requires the shooter to manually cock the hammer before firing. This firearm became iconic in the American West and is often associated with cowboys and lawmen. The Colt Single Action Army is chambered for various cartridges, including the popular .45 Colt. Its design features a six-round cylinder and a steel frame, making it both durable and reliable. The revolver remains a popular choice among collectors and enthusiasts today.