You got three basic tupes of ML's.

flint lock... uses and exposed hammer on the side of the rifle and a flash pan. THe hammer has a flint that strikes the flash pan and creates a spark igniting the powder in the pan and thus the powder charge in the barrel.

Side lock... still has an exposed hammer on the side of the gun but instead uses a percussion cap to ignite the powder charge.

In line... any ml rifle that has the ignition source directly behind, or inline with the powder charge. The benefits of an inline is that the spark from the primer/ cap does not have to make a turn to ignite the powder.



Mose all inlines will have different adapters so that you can use either a #11 percussion cap, musket cap, or a # 209 shotgun primer.