Brandon, no "Magazine" specified my man however, you can pickup some lightly used MC20 Magazines for a good price here : http://gregcotellc.com/cart/zenith-girsan-tisas-c-205/zenith-girsan-mc28-9mm-15-rd-y028s050300-very-lightly-used-p-2000.html

Brandon - magazines for the MC28 are designated for the MC28. Since you didn't specify which magazine you were talking about, there is no way to know for sure whether the ones you have in mind will fit. There are several sources for the MC28 magazines, however it does not appear Buds has any in stock right now.