Choose a type of martial weapon. You understand how to use that type of martial weapon in combat.
Benefit: You make attack rolls with the selected weapon normally (without the non-proficient penalty).
Normal: When using a weapon with which you are not proficient, you take a –4 penalty on attack rolls.
You can gain Martial Weapon Proficiency multiple times. Each time you take the feat, it applies to a new type of weapon.
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.