What is the function of the receiver in a firearm?

The receiver in a firearm is primarily responsible for containing the working parts of the action. It acts as the central component that houses essential mechanisms such as the trigger assembly and bolt, allowing the firearm to function properly. The receiver plays a crucial role in the cycling of the action, enabling the firearm to load, fire, and eject cartridges.

While the receiver may interact with or support other components like the magazine or barrel, its main function is to provide a framework where all the moving parts come together and operate in harmony. Understanding the receiver's role helps emphasize the importance of this component in the overall design and functionality of a firearm.