SPD MAGS CONVERSION KIT FOR SPRINGFIELD ARMORY® MAGAZINES Previous Next SPD MAGS CONVERSION KIT FOR SPRINGFIELD ARMORY® MAGS view options Springfield Armory® Hellcat® / Hellcat Pro® 9mm $39.95+ view options Springfield Armory® Hellcat® / Hellcat Pro® 9mm $39.95+ view options Springfield Armory® Hellcat® / Hellcat Pro® 9mm $39.95+