"The Armory" is a chain of weapon supply stores spread across the world. You can find one at every port, and can buy or uprgade your weapons and armor there.
Old Man MarcelEdit
The shop owner is a jolly fellow who loves to talk to adventurers. He used to be one himself, until he took an arrow to the knee. Not much is known about what he did. He has a great presence in the world, and often times comes up with some pretty rare stuff to sell. He is a wealth of knowledge, so make sure you take advantage of it!
Some say he's actually a Devil Fruit user himself, but no one is really quite sure.