Which part is NOT typically included in a caplock muzzleloader?

In a caplock muzzleloader, the cylinder is not typically included because this type of firearm operates differently than a revolver or a cylinder-based firearm. A caplock muzzleloader uses a single barrel into which black powder and lead projectiles are loaded, and it relies on a hammer to strike a cap that ignites the powder. This design reflects the traditional characteristics of muzzleloading firearms, where each shot is loaded from the front of the barrel, rather than having a rotating cylinder that holds multiple rounds.

The trigger, nipple, and hammer are all essential components of the caplock mechanism. The hammer strikes the cap placed on the nipple, igniting the charge in the barrel. Thus, understanding the function and design of these components helps clarify why the cylinder is not relevant to this type of muzzleloader.