One Hander

One Hander is a trait in Fallout, Fallout 2 and Fallout Tactics.

Fallout, Fallout 2
This trait gives a -40% chance to hit with two-handed weapons, but +20% to hit with weapons that only require one hand. Affected weapons are Unarmed, Melee, Small Guns and Energy Weapons pistols, and Throwing weapons. Completely unarmed attacks, such as Hammer Punch, are unaffected by this trait giving them neither a bonus nor penalty.

Fallout Tactics
This trait increases your Small Guns, Unarmed and Throwing skill by 10% while lowering your Big Guns by 30%. There is no penalty for using two-handed weapons and no bonus for using one-handed weapons.