2) Classic Army
3) Jing Gong
Tokyo Marui makes a really good G36C, but does not have the scope.
BTW, the scopes aren't all that good anyhow. Eye relief is usually poor, especially with goggles. The Red Dot version from STAR / Aries is a POS. The scope is the same though, which isn't too bad. The G&G scope rail is ok as well. None are as good as a real G36 scope rail, but those cost more then the AEG itself, if you can find one.
ASC & RAAT Age Verifier for Red Deer & Area Alberta