Gregg,
Yes they do, and without a permit. But you have to build your own because no one sells them. There is no such thing as a gun shop.
Black powder is available at hardware and farm supply stores. But I believe it is blasting powder. But, hey, it works.
I just don't have the tools here to build one. Haven't looked into getting a barrel. Would have to make my own lock from scratch. You get the picture.
Volatpluvia