Where is the 4th weapon slot?

borderlands 3 4th weapon slot   Dan borderlands 3 artifact slot unlock

Unfortunately there isnt any trick to enable the additional 3rd and 4th weapon slots unless those other characters join a point in the story

The fourth and last slot in your inventory is called the Artifact slot This empty little box is going to remain unavailable for a long time, Borderlands 3 dlc5 with 4th skill trees for Moze, Fl4, Zane & Amara G2A EPIC Deals On Games

dolce vita slot Completing the Story Mission: Bright Lights: Flying City grants you the 4th weapon slot #1 IvanLeTerrible  Weapon Trinket, 4th Weapon slot Unlock, Unique Legendary SMG Go to Sanctuary bridge, Eliminate Maliwan squad Upon completing the previous mission