What safety mechanism in an inline muzzleloader can block the trigger or hammer?

The safety mechanism in an inline muzzleloader that can block the trigger or hammer is referred to as the safety. This device is specifically designed to prevent accidental discharge of the firearm when it is not in use. When engaged, the safety physically restricts the movement of the trigger or hammer, ensuring that the firearm remains in a safe condition until the user is ready to fire.

Using a safety is a critical practice in muzzleloading and all types of firearm use, as it provides an additional layer of security to prevent unintended firing. This is particularly important given the nature of muzzleloaders, which require a series of steps to load and discharge.

The other options do not serve this purpose. The receiver houses the mechanism of the firearm but does not offer any means of preventing operation. The trigger guard is designed to protect the trigger from unintended contact but does not block the trigger function itself. Flintlocks are a type of ignition system for muzzleloaders, unrelated to the safety features of inline models.