Make sure to first have SuperBLT, BeardLib, and WeaponLib installed. Click the links in the dependency list.

Optional video tutorial for installing SuperBLT, BeardLib, and mod_overrides mods: https://youtu.be/rin_sjSJIkg

1. After downloading the mod, use a program such as 7zip or WinRAR to extract the main folder of the mod.
2. Drop that main folder of the mod to assets/mod_overrides. The assets folder is supposed to be in your game's installation folder (don't know where that is? click here). Create the folder if necessary

drop the Third Eye folder in mod_overrides and Enjoy!

Things to do:
Add the original scope,
Port the original reload animation if possible

Known Bugs:

mag doesnt drop off when reloading.
crashes on startup due to tweakdata requiring the signature scope