Or any other hi cap mag adaptor, Is this even a possibility? The steyr would be awesome with a 30 or even 20 rnd mag for it. The steyr 12 rounders cost double what the 10's do and only hold 2 more rounds. Could someone maybe custom fabricate hi cap mags? It seems like with all there guns steyr doesnt bother with producing lots of mags and no third companies bother to make them either.