now, apparently, you can buy them pre loaded!
(last item on the page)
http://www.samsguns.com/cgi-bin/Sto...5_Magazines&productid=25921&tracking5=froogle
(last item on the page)
http://www.samsguns.com/cgi-bin/Sto...5_Magazines&productid=25921&tracking5=froogle