There is a Guardala Studio on ebay:
http://cgi.ebay.com/Guardala-Tenor-Studio-LT-MPC-Mundstueck-handfinished_W0QQitemZ330127114368QQihZ014QQcategoryZ16234QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Does the picture of the chamber show a bullet chamber??? Perhaps Mojo knows?
http://cgi.ebay.com/Guardala-Tenor-Studio-LT-MPC-Mundstueck-handfinished_W0QQitemZ330127114368QQihZ014QQcategoryZ16234QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Does the picture of the chamber show a bullet chamber??? Perhaps Mojo knows?