Which of the following is NOT a part of a muzzleloader?

A muzzleloader is a type of firearm that is loaded from the front (the muzzle) rather than from the rear. Its essential components include the trigger, barrel, and breech plug. Each of these parts plays a crucial role in the operation of the firearm. The trigger is responsible for firing the weapon, the barrel directs the projectile, and the breech plug seals the rear of the barrel, allowing for the ignition of the powder charge.

In contrast, a magazine is not a part of a muzzleloader. Magazines are used in other types of firearms, such as repeaters and semi-automatics, to hold and feed ammunition into the chamber. This distinction highlights the operation and loading methods of different firearm types, which is fundamental for understanding their mechanics and usage.