1. Navigate to this table, pick up desired weapon skin and copy (CTRL+C) its MIC path:
https://docs.google.com/spreadsheets/d/1Xp3yReZK2linQtm2-wNUngjTMtQ9e0M8GDtcbRKQsBo

You can use the search function (CTRL+F) but keep in mind that this list contains internal weapon names (SG 500 Pump-Action = MB500, Eviscerator = Sawblade etc.) so you better search by the skin name itself.

2. Start KF2 in solo, activate the cheats ("enablecheats") and get yourself a weapon you would like to test skin for. You can use "doshme 999999" and "opentradermenu" commands to make it easier.

3. Type this in console while holding tested weapon:

Use the paste function (CTRL+V) so you would not have to input the string manually.

For example:

Some weapons use different materials for their parts (e.g. Bone Crusher's mace and shield, optics on certain weapons etc.). You have to input the command for every part individually. Note that you also have to change Material Index value each time you add a skin for the new body part. For example, Bone Crusher has separate skins for its mace and shield and Deepstrike Crossbow has separate skins for its body and scope. Use these examples:



You can apply every skin on every weapon, however only matching skins are guaranteed to have a fitting look on the weapon.

Enjoy!

Current version is 1.150.