The GCO Weapon attachment in Rust is locked behind the Level 2 Workbench. Players can unlock this item in two ways: Progressing through the Level 2 Workbench Tech-tree. Searching for the item and then ...
With the Workbench built, all you need to do is stand near it while crafting the types of items that require a Workbench. It's best to build it inside your house. Like most things in Rust, it can be ...