Originally Posted by Nightowl

I could be wrong, but if you measure from the front of the cylinder to the end of the barrel, I think you will find the nominal barrel length will be 6 1/2 inches long. It will still be considered 6 1/2 even if it is a little short as there were some fitting that took place that would shorten the barrel length a bit, some could be up to an 1/8 or so short.