The Glock pistol is a popular semi-automatic handgun known for its reliability and simplicity. Designed by Austrian engineer Gaston Glock in the early 1980s, it features a polymer frame and a unique "Safe Action" system that includes multiple safety mechanisms. This design makes it easy to operate and maintain, appealing to both law enforcement and civilian users. Glock pistols come in various models, each tailored for different purposes, such as self-defense, competition, or law enforcement. They are chambered in several calibers, including 9mm, 40 S&W, and 45 ACP, allowing users to choose based on their needs and preferences.