airsoft G&P M653 is maybe the closest to the C8 look..
BTW, if you want to see what airsoft parts I took to do airsoft C7 you can see here a list in the thread here
http://translate.google.com/translat...um%2Findex.php
P.S. I am still looking for Olive rubber sleeve for C79A2 (Elcan) scope (maybe will do by myself soon

) and would like to have shitty Colt Canada BUIS to have the rifle look complete