A small pack of weapons used by historical pirates:

*Cutlass: Do I even have to explain this?

*Boarding Axe: Hammery axey thingy used to repel boarders, prevent them from reaching the ship, and, well, hurt people.

*Marlinspike: Spike, used for assorted purposes while sailing.  Great weapon for mutineers.

*Grenadoe: It's a grenade, basically.