I have a ruger pc4 carbine I think the stock is made of the same thing that the world famous paddle stocks are made of .My paddle stock rifle stock and the ruger pc4 carbine both turned a off white milky color .I kept them both in a case no sunshine did this .Is there a kinda paint to recolor the stock with ? The stock looks really weird this milky color like it's super old .The rifle looked brand new when I got it 6.Its one of the weirdest things I have ever happen .Maybe they just know I don't like these plastic stocks !