AVT-40 file

For clearance:-
This file doesn't change the weapon skin. Only the fire rate and makes the weapon fully automatic.

Image source:-
En.m.wikipedia.org

Installation:-

1. Unrar the file with winrar or any software that can do it.

2. Copy the .iwd file.

3. Go to installation directory and then to main folder.

4. Paste the file there.

5. Open the game and see if it works.