The weapons and armor in The Outer Worlds have a limited amount of durability before the items have less effectiveness. That said, you’ll either need to find new weapons and armor, OR, you can repair the ones that you’ve got. There are a couple of different ways to repair your weapons and armor in The Outer Worlds and where you can do it will depend on the way you have allocated your skill points.
You can repair items in the inventory menu for weapon parts or armor parts or you can take these items to a Workbench. Simply head to a workbench icon on the map to do your repairs. Repairing an item to max durability will give you the highest damage output or highest protection.
Repairs are not free though. Repairs will cost you weapons and/or armor parts when you do them at a workbench. Weapon and Armor parts can be found all over the game world, but if you don’t have any you can break down the items you have for these parts.
To repair weapons or armor without a workbench you need to have a high enough Engineering Skill. Once you have increase your Tech Skill to Level 20 you will unlock the Field Repair Perk. This allows you to repair weapons and armor from your inventory screen without the need for a workbench.