A player can use a variety of weapons, not all weapons are for set classes. Any character can use almost any weapon, as long as they have the required stats. Using weapons that don't require class stats or skills is almost useless, as they do not confer any bonuses. The only exceptions for the most part are bows, which are only available to rogues, and staffs for mages.
The game also includes several unique weapons, which drop only from bosses. Unique weapons are highly sought after, as they offer bonuses to other stats.
At level 70, there is a quest available in Eslant to get a personal weapon or shield depending on the player's class. The weapon's name is personalized with the player's name. However, this is one of the hardest quests on the whole game of KOL.