Ruger MK series- As Eric300 and others have stated work very well. I own MK I, II,III's but would suggest a threaded barrel MK IV since it is much easier to reassemble. Keep them clean, moderate maintenance and the will run forever. The heavier profile barrel seems to to balance the best. If you want a SW an old 2206, threaded, or a Model 41 if price is not a major factor. The reason for the threaded barrel is simple, she may never want a suppressor, but if she does you have save yourself a minimum of $ 125.00 down the road. If she would sell it it is just one more option to entice buyer, as are adjustable sights. Adjustable are not suggested for a hard use duty/combat/carry weapon, but on a plinker it is nice to be able to adjust for ammo and shooters hold. Enjoy. Be Safe,

__________________
I BACK OUR BLUE