Yes...and NO.
Although they do make the 186, the newer ones have a bigger bell and nickel silver leadpipe, unlike the older ones. They sound a little different, too, from the 60's and 70's ones that set the standard.
I have played two older ones and they had a certain magic that the newer ones just don't have. Don't get me wrong, the newer 186's are still one of the best horns out there for the money and are very well constructed.