I just use the length of a screwdriver to manually cock an uncocked Smith. I went looking for a tool but found out you really don't need one. It is quite simple. I have a 3E Regular frame with the under horns looking about the same. Makes me ill and have not gotten around to fixing it. I'm like Keith, go out of my way to avoid the barbs and other "goodies" to keep the guns in top shelf condition. To be honest, can not imagine using my gun to move the barbed wire, yikes!!!