It is fitted with what appears to be an unusable flashlight. In Grand Theft Auto: Liberty City Stories, it is modeled after the compact MP5K, which has no stock.In Grand Theft Auto: Vice City and Grand Theft Auto: San Andreas, the weapon is modeled after an MP5A3, painted grey.True to its name, the MP5 is based on the weapon of the same name, with each game having a variant of said weapon: 6.3 Grand Theft Auto: Liberty City Stories.5.5 Grand Theft Auto IV + Episodes from Liberty City.