G&P makes G36 front end sets for aroung $100. thats the closest you are going to get i think. look on WGCshop
fortunately everything on WGCshop is super copyright protected and i cant copy pictures or links so here are some step by step instructions.
I just want the -stock- inner and outer barrel not the forgrip itself.
AEX might be able to hook u up, those are all parts that they need to carry for repairs, call them and see what they say.