There are three basic groups of parts in all modern firearms. These parts are the barrel, the butt, and the breech. The latter is the part of the stock that sits against your shoulder. The barrel houses the cartridge, shotshell, and magazine, and is either built into the stock or detachable. The trigger and magazine are the most important parts of a firearm, and each has a specific function.
First, we need to define what a modern firearm is. The term “modern” refers to any gun made after 1898. A pistol’s caliber refers to its bore diameter, while a rifle’s is given its caliber in inches. A shotgun, on the other hand, is referred to as a “gauge” because of the size and shape of its muzzle.
A firearm’s barrel is the longest part. It contains the projectile, which is under pressure. Most modern firearms use detachable magazines, which can be removed without disassembling the gun. By pushing a release button, the magazine can be removed without disassembling the gun. A firearm’s barrel can be made of many different types of metal, including polymer, ceramic, and steel.
Next, let’s discuss ammunition. A shotgun uses a shotshell. The shell contains a shotgun projectile in a case. The case contains a primer, gunpowder, and wad. Once fired, the gunpowder ignites by striking the firing pin. The slug can be made of bismuth or steel. These pellets are usually fired through a shotgun barrel.
A gun’s action consists of three groups of parts: the breech, the barrel, and the trigger. The barrel, or receiver, is the mechanism that loads, unloads, and fires. These components vary depending on whether the firearm is a single shot or a repeating one. A single-shot firearm needs to be loaded each time, whereas a repeating firearm has extra cartridges stored in the barrel tube.
A gun’s trigger guard. Trigger guards prevent accidental trigger contact. Previously, people used bamboo tubes to mount gunpowder on spears. This design has changed dramatically in modern firearms, and the trigger guard is one of the most important safety features. Until modern firearms, trigger guards and grips were essential to safe handling. With these parts, every firearm has a different function.
Magazine: A pistol uses a detachable magazine to store its cartridges. A single-shot pistol has a single cylinder, while a repeating pistol uses a stripper clip to transfer cartridges into the magazine. In addition, rifles have two basic groups of parts: a breech, and a trigger. The trigger, however, is the part that fires the bullets.
Muzzle: A muzzleloader is an unloaded firearm that uses a small primer charge of gunpowder. A percussion cap is the same thing, but it uses expanded gas instead of gunpowder. This fire control group is located inside the muzzle. A percussion cap is similar to a flintlock cock, except that it is a self-contained explosive charge.