Best bet is the Beretta 17 round mags made by Eagle(CDNN sells).
Because the XD/HS2000 latches on the front of the mag, you have to square the top of the hole (located on the top front about 1" down) so it will latch in. The Eagle mags will not lock the slide open after the last round but that can be fixed by swapping followers or buying new followers from Springfield - at about $3 ea.
Eagle mags will give you 17 rounds of 9 m/m and 13 or 14 of 40.
The XDor HS2000 wasn't made until well after the 94 ban was in effect so that is your best option