What is the muzzle of a firearm?

The muzzle of a firearm is defined as the end of the barrel where the bullet exits upon firing. This is an important part of a firearm as it directly impacts the accuracy and effectiveness of the shot. Understanding the role of the muzzle is essential for proper handling and safety, as it is the point from which projectiles are discharged. When aiming or storing a firearm, keeping the muzzle pointed in a safe direction is crucial to prevent accidents and ensure safe operation. This definition nicely distinguishes the muzzle from other components such as the trigger mechanism, chamber, and safety lock, which serve different purposes within the firearm's design and functionality.