http://www.austrialpin.at/Produkte/news/RECALL---DELTA-Karabiner.aspx

For the safety of all customers AustriAlpin is issuing an
immediate voluntary recall of certain batches of the Austrialpin DELTA carabiner
delivered after October 2012. If you own a Austrialpin DELTA carabiner that was
purchased after October 2012 please read this notice carefully and follow the
instructions.

Affected are DELTA carabiners, article number FD00A with the batch number 00001
and Ø0001

Thanks to Bart and Justinas.