Pathfinder 1e
Trait
Race_Package
Undersized Weapons
Although Large, centaurs wield weapons and use armor as if they were Medium humanoids.
Although a centaur is Large, its upper torso, head, and arms are the same size as those of a Medium humanoid. As a result, centaurs wield weapons and use armor as if they were one size category smaller than their actual size (Medium for most centaurs). See undersized weapons.