Derringer

The  is a hidden single-shot Fiona's pistol manufactured by Jakobs.

Special Weapon Effects
Small but powerful, single-shot pocket pistol to be kept in a sleeve as a last resort/emergency weapon.

Description
Can be used by the player only one time in Episode 1 in any of two occasions, or even not used at all. Upgraded version of this gun with three different elemental capacitors appears in Episode 2.