What are the three main parts found in a modern firearm?

The three main parts found in a modern firearm are indeed the stock, action, and barrel.

The stock serves as the framework and support system for the firearm, allowing the shooter to stabilize the weapon while aiming and firing. It is typically made of wood or synthetic materials and is designed for comfort and control.

The action is a crucial component of the firearm. It encompasses the mechanisms that load, fire, and eject cartridges. Depending on the type of firearm, the action could be a bolt, lever, or semi-automatic system, among others. Understanding the action is essential for operating the gun safely and effectively.

The barrel is the part of the firearm through which the bullet is discharged. It is usually rifled, which means it has grooves inside that impart spin to the bullet, improving accuracy over distance. The barrel's length and design can significantly affect the firearm's performance, including its range and accuracy.

This combination of parts is fundamental to the operation of a firearm, and knowledge of them is crucial for safe handling and effective shooting.