There are twelve weapon slots in the game and one special weapon slot for players to fill their wheel with. These are unlocked throughout the game and found in some of the harder-to-reach places later on.
| Weapon | Unlock |
| Fist | Default |
| Baseball Bat | Found Outside The First Safehouse |
| Pistol | Complete "Pump-Action Pimp" |
| Uzi | Complete "Cipriani's Chauffeur" |
| Shotgun | Complete "Arms Shortage" |
| M16 | Complete "Arms Shortage" |
| Rocket Launcher | Complete "Arms Shortage" |
| AK47 | Complete "Last Requests" |
| Grenades | Complete "Last Requests" |
| Sniper Rifle | Complete "Last Requests" |
| Molotov Cocktail | Complete "A Drop In The Ocean" |
| Flamethrower | Complete "A Drop In The Ocean" |
| Detonator | Special Weapon Only Available On Missions |
Claude's pager will notify the player when a weapon unlocks that a weapon is now available in stores. While players can purchase most weapons from Ammu-Nation after completing missions, some weapons are sold elsewhere. Phil Cassidy's Army Surplus will allow the player to buy Shotguns for $1,500, M16s for $5000, and Rocket Launchers for $25,000.
Related: Where to find safehouses in Grand Theft Auto 3 – Remastered
After completing the Arms Shortage mission, Phil's shop unlocks and is the only place the player can buy the Rocket Launcher.
For more guides on Grand Theft Auto 3, check out How to make money in Grand Theft Auto 3 – The Definitive Edition on Pro Game Guides.
Adam Aguilar has been playing a variety of genres since childhood but gravitates towards story driven RPGs like the Final Fantasy series or horror games like the Resident Evil and Silent Hill series. He enjoys analyzing themes found within video games and has been writing about them for over 5 years now. As a Contributing Writer for PGG, Adam has been known to cover anything from Phasmophobia to Genshin Impact!