2009 January 24 update: Manuals found at hnsa.org for the 20mm Oerlikon and mounts. I'll update the drawings as soon as I can.

December 20th 2006, noticed the lock handles for the shoulder rests are offset, will fix soon and I'll check everything else. Also, the magazine had slots in the rear cover in addition to the holes. This was for viewing the rounds inside.

Details of the mount and double loading stop are still needed, please send if you have some good ones or post in the forum image section.