ive been trying to find a decent magazine or drum for my SKS for awhile now. i would like to get a mag or drum that will hold at least 50 rounds but if i found a 200 round drum or something of that sort i would be thrilled. anyway ive been having a hard time locating any that are worth anything. the last 2 50 round mags ive bought had such weak springs that they would only cycle about 15 rounds and then you had to remove the clip and unload the rest by hand. havent found and drums. there arent anymore places in my area i can find that have high capacity mags so im down to trying to order a good one off the internet. what are some good trusted internet sites where i could order a magazine that wont let me down?