I thought about the tip-up guns, but have no experience with them. Does anyone make them in larger calibers than .25 ACP?
A previous poster suggested a revolver with exposed hammer she could cock. I thought of that too, and she could do that with my M36 and M13, but LOWERING the hammer without firing was a bit tricky. Fortunately we tried it with an empty gun. She could probably do it with practice, but in a stressful situation I don't want something else to go wrong. She likes the LCP and has no problem with the trigger pull and can manipulate the slide. Unless somebody comes up with a better idea that's probably what she'll buy.
Then I'm going to spend a LOT of time training her!