The player may also complete the Rockstar Games Social Club challenge to unlock the Gun Set 4 cheat in order to obtain this weapon (See Cheats in Redemption).
The Mauser Pistol is one of four pistols in the game, alongside the Semi-automatic Pistol, High Power Pistol, and Volcanic Pistol. It is also one of the five rare weapons that must be obtained in order to reach 100% Completion in the game (each weapon contributes 0.5%).