This simple material config edit removes cubemap reflection from the default Krinkov handguard. It's still polished and shiny, but without the look of being coated in plastic.

Installation:

• Unzip the archive into \Steam\steamapps\common\PAYDAY 2\assets\mod_overrides
  

Want to make the wood on other AKs look better? Check out AK/AK7.62 retexture (and other mods) by Felix Willebrand Westin.