The lug closes to the breach-end of the barrels looks like it has "28" stamped on it - wouldn't that be the barrel length? Never noticed if they stamped them with the barrel lengths when they made them - if so, that would be an easy way to identify a chopped gun at a gun show, etc.

Or does that "28" mean something else? Or is that not even a "28" at all?

Just trying to learn what not to buy...