Picked up a 1974 High Standard Flite-King Riot gun last week. Oddly, my dream gun after seeing one in a 1965 Shooter's Bible when I was a kid. Good condition and doesn't appear to have been shot much at all. One thing I need some help with, though. As I got the gun the "left cartridge stop" (the one pushed down by the action bar every time you pump) wouldn't move far enough to release a shell from the mag tube. The action bar isn't bent or worn, the receiver isn't worn, and the cartridge stop isn't worn or dirty. With the geometry in place it wasn't capable of being moved out of the shell's way. Were these stops originally fit to the gun by hand? Mine looked like it could have been a replacement. I ended up getting another replacement (identical) and stoning the end down so a shell would clear it. But I assume these guns were designed to use off-the-line parts and I'm a little confused how this would have worked in that case. The interaction between the action bar and the cartridge stop doesn't have a wide enough range of movement to work as it came to me.