Hunter-Ed Certification Practice Exam

Which part of a modern firearm has the same function as the lock on a muzzleloader?

1. Barrel

2. Stock

3. Action

4. Trigger

The correct answer is: Action

The action of a modern firearm serves the same essential purpose as the lock on a muzzleloader. In both types of firearms, these components are critical for loading, firing, and ejecting cartridges. The lock on a muzzleloader is responsible for igniting the powder charge, typically utilizing a flint or percussion cap, which is functionally similar to the action in a modern firearm that chambers a round and strikes the primer to fire the bullet. The other choices do not fulfill this function: the barrel is the part through which the bullet travels; the stock is the handle or shoulder rest for the shooter; and the trigger initiates the firing action but is not responsible for the overall loading and firing mechanism. Thus, the action encompasses a broader range of mechanisms involved in the firearm's operation, making it the correct answer.