(DOWNLOAD THE ORIGINAL MOD WITH THE PROVIDED LINK)
Then Add the Files into this Directory:
GTAV/mods/update/x64/dlcpacks/patchday8ng/dlc.rpf/x64/models/cdimages/weapons.rpf
THEN DRAG THE RETEXTURE .ytd FILES INTO THAT DIRECTORY
ORIGINAL MODEL: AK-47 From Call of Duty: Modern Warfare 2 Remastered
Credits:
Original mod from R4noo7076
RETEXTURE : MR WW