I came upon some pre-ban 30rd AK mags in pretty rough shape. I want to repair and refinish these, and in the process replace the followers with a US made one (I believe Tapco makes these) and maybe the floorplates. If I do this, can I still consider these "pre-ban"? I'm thinking Yes, as none of the laws refer to repairs, and I really can't consider maintenance as manufacturing. Anyway, it would be nice to have 922r covered (they may end-up in my saiga and it would be nice to have the additional parts count - thought obviouly not enough on their own.)