If you are not totally sold on a Baldric you might try a dedicated sword belt like here: http://www.marlowwhite.com/cgi-bin/c...&search=action

Then you know that the scabbard will work with the belt. I could not find a Marine specific belt on there but I would suppose that it would be the same as either your sister service in the DoN or the other ground branch

--one of your friendly local "Marine Taxidrivers" who is dreaming of getting a cutlass ith: