i cant change the color....
Make a new folder
Take the AK47 .zip and place it in the new folder.
add a 1 to the end of the name of the file
Extract everything in that zip into that new folder from the ak.
Select the pictures/materials/colors, open them in MS Paint, and color them Gold.
Close MS Paint after you finish
Make another zip
take all of the extracted files and put them into that new zip.
then rename the zip weapon_AK47
Profit.
If you can't do that, or it doesn't work, it's in the code.
Which in that case, start experimenting, editing, and learning code.