---QUOTATION--- I know for sure that the fore/pistolgrip and the stock are polymer, if they're looking kinda metallic I'll just blame that on my lack of skills with plastic ---END QUOTATION---
Now would be a good time to practice Your metals and woods are second to none though. Look around on CDG and study some skins with polymer stocks. Then try out some stuff. You probably wouldn't even need to start over, it would most likely just be a few little tweaks.