Lowercase is right about the screws but before you start cranking on them, make sure you have the proper sized driver. They are ease to mess up.
Also stay with rounds with bullets 220 GR or less weight. No +P’s. Cowboys are best.
I have one of the old stainless with the bobbed hammer. Great little gun.
"The difference between stupidity and genius is that genius has its limits" Albert Einstine