What are the three main parts of a handgun?

The three main parts of a handgun are the frame, barrel, and action.

The frame serves as the foundational structure of the handgun, housing essential components and providing stability and support. It is the part to which other components are attached and is integral to the handgun's overall integrity and functionality.

The barrel is crucial for directing the projectile when a shot is fired. It is designed to allow the bullet to travel accurately and is specifically engineered to fit the caliber of the ammunition being used.

The action of a handgun refers to the mechanism that loads, fires, and ejects the cartridge. It includes components like the firing pin, hammer, and other mechanisms that operate together to ensure the safe and reliable firing of the handgun.

This answer highlights the essential structure and operation of a handgun, focusing on the core functionality necessary for it to be effective and safe to use.