You can wield big weapons in one hand.
Prerequisite: either Proficiency: Weapons (mêlée) or Proficiency: Weapons (ranged)
Benefit: You can wield two-handed weapons in one hand, including firearms and weapons not sized for you. For example, you can wield a quarterstaff with one hand, or if you were a medium-sized person you could wield a weapon sized for a large person in one hand. You also wield medium-sized weapons in your off-hand as if they were light weapons (i.e., you do not incur the standard penalty for two-weapon-fighting with a medium-sized or larger weapon in your off-hand).
NB: You cannot take this feat multiple times. Its effects do not stack.