Firearms are weapons that use gunpowder or other propellants to launch projectiles, typically bullets. They come in various types, including handguns, rifles, and shotguns, each designed for different purposes such as self-defense, hunting, or sport shooting. Firearms have been used throughout history and have played significant roles in both warfare and law enforcement. The operation of firearms involves a series of mechanical processes, including loading, firing, and ejecting spent cartridges. Safety is crucial when handling firearms, which is why many people take courses to learn proper techniques and responsible ownership. Understanding the laws surrounding gun ownership is also important for anyone interested in using firearms.