I have a couple of Agents. One from 1975, which I carry a lot. The other from 1964. Both have the factory hammer shroud. The newer gun is supposedly rated for +P. That's what I carry in it. The relative light weight is part of the guns appeal. My other carry revolver is a M66 2-1/2". It's decidedly not light weight. However, it shoots just like a full size gun as far as I'm concerned. It is a load to carry though.