About:
The Kaoson is a Legendary Vladof SMG in Borderlands 4 and part of the Base Game. In this gear guide, you will learn about the Kaoson’s unique abilities, how to obtain one for yourself, and other tips and tricks.
Special Weapon Effect:
Twice the power!
- Granted: Fires Torgue Sticky Gyrojets
- [ALT Fire] Atlas-Licensed Underbarrel: Fires Tracker Grenades, tagging enemies that your Projectiles will home in on for 8 seconds.
- Torgue-Licensed Sticky Magazine: Fires sticky Gyrojets – which increases explosion Damage by +2, 3, or 4% each
How to get the Kaoson?
Origo is the dedicated loot source for the Kaoson in Borderlands 4 and has a 9% chance of dropping the item. They are the Terminus Range Primordial Guardian, which is located in the Low Leys province.
Ultimate Vault Hunter Mode increases the drop rate with 2% per UVH Rank.
Notes:
- Fixed Parts
- Highest Torgue Sticky Damage is 4%
Trivia:
- The Kaoson is a returning Legendary from Borderlands 3.
- The weapon’s name and legendary part are a reference to Gearbox Developer Grant Kao.

