Ok so im thinking of getting an AK 47 and have a question. I want a black stock and forend grip. I saw these..... http://www.k-var.com/shop/home.php?cat=251 Say this one in particular... http://www.k-var.com/shop/product.php?productid=16190&cat=251&page=1 now its says: AK-001M ~ Bulgarian AK-47 Stock Set ~ For Milled Receiver So I thought all AK's were the same but, are there differneces between Bulgarian, yugo, Romanian etc? Basically my question is will those stock and forend grips work on all AK-47's or only bulgarian? Sorry for the noob questions!