I have a KKM 10mm conversion barrel for my Glock 30. I asked Kevin at KKM what needed to be done with the extractor for this conversion, specifically asking if the 10mm extractor was an option. The response was less than helpful: I did search extensively for an answer to my question. There is a lot of discussion on the conversion, but nothing that talks about what specific modifications are needed with the extractor. There also seems to be a lot of conflicting information that turns up in the search. People saying no mods are needed, or going as far as the barrel was designed to be used with the .45 extractor, others saying to use the 10mm extractor, and some even stating the .45 and 10mm extractors are the same exact part. So, what is needed to make this conversion reliable.