He won't ship mags, his aren't pinned so they would just be siezed at the border. You have to buy in Canada. He's also horrible for responding to emails. Duckbill mags fit fine, it's what they're made for. I've got a Russian Tula SKS that I've installed a 5/20 Tapco duckbill mag into, bought it off a vendor here from under $40. It can be removed (with the bolt open) and hand loaded or fed with stripper clips