9mm Mauser

The  is a very rare small gun in the Fallout games. So rare that only one is obtainable in Fallout, but they are a little more common in Fallout 2 and Fallout Tactics.

Fallout and Fallout 2
It uses 9mm Ball in Fallout and 9mm or 9mm Ball in Fallout 2.

Fallout

 * Junktown Casino, Found on Gizmo's corpse only.

Fallout 2

 * New Reno Commercial Row, Found in a footlocker in the back of New Reno Arms.
 * Willy Special Encounter, Found on Willy guards corpse.

Behind the scenes
The 9mm Mauser's file name is GIZGUN1.frm in the game files, as a testament to its rarity and sole location in Fallout.

Fallout Tactics
It's named HSI Mauser in Fallout Tactics.

Behind the Scenes
This firearm is the Mauser C96, nicknamed the "Broomhandle". The Mauser pistol was originally manufactured in 7.63mm and a contract of 9mm versions were made for the Imperial German army in the first world war.

Appearances
The appears in Fallout, Fallout 2, and Fallout Tactics.

Mauser 9mm 9 мм Маузер