Red Ak

before you install the skin make sure that you have done this http://gamebanana.com/csgo/tuts/10765 this will avoid you from pink and black texture problems

put the folder into steamapps\common\counter-strike Global Offensive\csgo open pak01dir with notepad++ and rename $baseTexture "models\weapons\v_models\rif_ak47\ak47" with $baseTexture "models\weapons\v_models\rif_ak47\ak47r"