Machine guns are fully automatic guns that have 20 or more bullets in them to the most bullet capacity in the game, 200 bullets. They allow damage to be dealt but only when the bullets hit the enemy. There are currently 29 types of machine guns. They are:
- Rookie Machine Gun
- Assault Rifle
- Heavy Machine Gun
- Little Italy
- Scoped Assault Rifle
- Dual Machine Guns
- Guitar Machine Gun
- Elite Assault Rifle
- Winter Ghost Rifle
- Proton Gun
- Chemrail
- Siege Cannon
- Dual Rookie Machine Guns
- Airsoft SMG
- Dual Airsoft SMG
- Battle Ram
- Minigun
- Armed Guitar Case
- Stig Rifle
- Monkey's Rifle
- JP-BEK
- RA-KT Assault Rifle
- Rainbow's End
- Gatling Punch
- SMG Howling
- Double Barrel Machinegun
- Cousar Crowe Assault
- Plasma Machinegun
- Veteran Machine Gun