What is the breech of a firearm?

The breech of a firearm refers to the part of the gun where the cartridge is loaded and fired. Understanding this component is critical for safe handling and operation of firearms. The breech is positioned at the rear of the barrel and serves as the entry point for ammunition. When a cartridge is inserted into the breech, it aligns with the firing pin, allowing the bullet to be discharged when the trigger is pulled.

This definition highlights the role of the breech in the overall functionality of the firearm, particularly in relation to how ammunition is accommodated within the weapon. It is a fundamental aspect of firearm design and directly influences how ammunition is managed during use.