Firearms are Niko's primary tools for survival and mission completion. Grand Theft Auto IV features a diverse range of pistols, submachine guns, shotguns, assault rifles, and sniper rifles. Each category serves a different purpose in combat.

Pistols:
- Pistol: Standard sidearm, decent accuracy, low damage. Good for headshots.
- Combat Pistol: Higher capacity, slightly more damage.
Submachine Guns (SMGs):
- Micro SMG: High rate of fire, good for close-quarters. Less accurate at range.
- SMG: Improved accuracy and damage over Micro SMG.
Shotguns:
- Pump Shotgun: Devastating at close range, slow rate of fire.
- Combat Shotgun: Faster rate of fire, good for crowd control.
Assault Rifles:
- Carbine Rifle: Versatile, good accuracy and damage at medium range.
- Assault Rifle: Higher rate of fire, slightly less accurate than Carbine.
Sniper Rifles:
- Sniper Rifle: High damage, excellent accuracy at long range. Essential for specific missions.
- Combat Sniper: Faster firing, slightly less damage.
Where to Buy:
Most firearms can be purchased from Ammu-Nation stores located throughout Liberty City. Look for the gun icon on your minimap. You can also get discounted weapons from Little Jacob once his relationship perk is unlocked.
Tips:
- Always aim for headshots to conserve ammo and take down enemies faster.
- Switch weapons based on the situation (SMG for close, Carbine for medium, Sniper for long).
- Keep a good supply of ammo for your preferred weapons.