Most of them were made in .38S&W, but some were made for the Americans (at least U.S. Navy, that I have heard of, perhaps other forces, too) in .38Special, which would be nice to find. Some have been converted from the original .38S&W, so if you are offered one in .38Special try to find out if it is a conversion. I think the guns are strong enough, but an individual gun may not be safe if the conversion wasn't done well.