Unerring Shot Feat 18
Source Pathfinder Guns & Gears
Your senses are finely tuned to the slightest variations in the air, so much that you can place your shot exactly where you intend to aim it from any range possible with your weapon. When attacking with a ranged weapon in which you have master or greater proficiency, ignore the penalty from its range increment. (The weapon's maximum range is unchanged.) In addition, if your target has cover against your attack with such a weapon, it doesn't gain the bonus to AC if it has lesser cover, gets only the bonus of lesser cover if it has standard cover, or gains only the bonus of standard cover if it has greater cover.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
GunslingerThis indicates abilities from the gunslinger class.