Some while ago there was forum discussion about Surge rattle during which someone posted that Leatherman had modified recent copies to eliminate that problem. How far back that mod was supposedly done I can't remember, but my Surge from mid-2007 was totally quiet. My guess is that anything made since then would probably not rattle, but maybe the reported fix is internet legend and in actuality it really varies from one sample to another. Honestly, I don't know.