Colorado Hunter Education Practice Exam

Which part of a firearm loads, fires, and ejects the shells or cartridges?

1. Muzzle

2. Action

3. Barrel

4. Stock

The correct answer is: Action

The action of a firearm is responsible for loading, firing, and ejecting the shells or cartridges. The muzzle (A) is the front end of the barrel and does not play a role in the firing mechanism. The barrel (C) is responsible for guiding and directing the projectile, but it does not load or eject shells. The stock (D) is the handle of the firearm, used for gripping and supporting the weapon, but it is not involved in the loading or firing process. Therefore, B is the only option that accurately describes the part of the firearm responsible for these functions.