|[[Grand Theft Auto: Vice City|GTA Vice City]]<br />[[Grand Theft Auto: San Andreas|GTA San Andreas]]<br />[[Grand Theft Auto: Liberty City Stories|GTA Liberty City Stories]]<br />[[Grand Theft Auto: Chinatown WarsGTA Chinatown Wars]]
|[[Grand Theft Auto: Vice City|GTA Vice City]]<br />[[Grand Theft Auto: San Andreas|GTA San Andreas]]<br />[[Grand Theft Auto: Liberty City Stories|GTA Liberty City Stories]]<br />[[Grand Theft Auto: Chinatown Wars|GTA Chinatown Wars]]
In Grand Theft Auto: San Andreas, the player can increase his/her skill for a particular weapon by practicing, using the weapon either on a shooting range or on real targets. For each individual weapon, the player can achieve three skill-levels: Poor, Gangster and Hitman. On the Hitman skill level, the player is able to fire lighter weapons whilst walking, as well as being able to double-wield certain weapons (one in each hand).
For weapons that share ammo, the player can save money by purchasing lots of the cheap weapon (e.g. the Tec-9) to gain lots of ammo for that slot, then purchasing the expensive weapon (e.g. the SMG)
In GTA IV and its episodes, the player buys one gun then pays a smaller amount for additional magazines (thrown weapons still need to purchased one at a time at full price)
Picking up a weapon from killed Pedestrians or police officers
Weapons spawning as rewards - Once the player have reached certain parts of games, such as obtaining a certain number of Hidden Packages, some weapons spawn at the player's Safehouses
Weapons being automatically given to the player by other characters, such as those required for a mission
Entering/exiting certain vehicles, e.g. the Caddy gives the player a golf club and the Police Car gives the player a shotgun.
This is a list of weapons and weapon types in GTA III era games and GTA IV Era games. Not all of them are available in all games. They are grouped by the weapon slots from GTA San Andreas.