Kirby Morgan® discontinued manufacturing the KM57 Helmet on October 17th 2016. Spare parts, kits and accessories continue to be available for the KM57 helmet. Here is a link to the exploded view of the KM57. Here is the KMDSI Bulletin announcing the discontinuation of the KM57 Helmet: Contact us for any parts, kits and accessories you may need for your KM57 Helmet. Images of Kirby Morgan® Helmets, Masks, or logos are registered trademarks or Kirby Morgan Dive Systems Inc.®. Used with permission. Contact us today for information about new Commercial Diving Equipment, Used Commercial Diving Equipment and/or Kirby Morgan Helmets!