the salvage matrix
Note that in order to modify a weapon using the salvage matrix, you should unequip it and remove it from loadout slots.
Break down unwanted items to resources
Select the item (weapon or shield) you want to break down. The number of resources you will receive and the time it will take are displayed.
Attach mods to weapons
If the weapon you’ve selected has mod slots, and if you have mods that can be used in those slots, you can select which slot and which mod to add. Time and costs are displayed.
Remove mods from weapons
If you have a weapon with a mod or mods already attached that you do not want, you can strip off the mod or all mods. All mods will be lost. Time and costs are displayed.
Retrieve mods from weapons (This option becomes available to you above EGO rating 250.)
If you have a weapon with mod(s) already attached that you want to keep and use on another weapon, you can choose to remove the mods, but the weapon will be lost. Time and costs are displayed.
Add mod slots
If a weapon doesn’t already have the max number of mod slots, you can add one. Which slot is added will be random. This is instant. Each additional slot you add costs more.
Different actions take a different length of time to complete; during this time you cannot use the salvage matrix for anything else, so you can close the menu and come back later. A timer on the salvage matrix page shows a countdown to completion: