I posted the following in a similar thread if your interested in a semi auto for your wife.
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My wife already has 2 revolvers and I know she likes shooting a semi auto but struggles with loading it. So I ended up getting her a Walther CCP 9mm. Another choice was the PK380 - but it lacked a slide release.
PROS
- easy to the rack slide
- light recoil due to the blow back design
- excellent grip design
- manual safety
- accurate
- light trigger pull
CONS