I am fortunate to have a M21 12 ga Tournament 26" Skeet and also a set of 30" mod and full barrels which were added many years later. I love the gun.
Most Tournament grades were made in 12 gauge but there were also some 16's and 20's made. In my many years of collecting M21's I have seen only one Tournament grade field gun.
Thanks to Researcher for doing such a fine job of giving us the history of the M21 Skeet gun.