A Smith & Wesson Model 10! That would be a good firearm for her and more than enough to get Adamska here talking about revolvers. He's going to introduce her to the greatest handgun ever made, the Single Action Army.

I think these two will definitely get along. He love to show Naoto the ropes as he gets more of his memories back. I have him in this AU already coming with weaponry knowledge since I can't take the "revolver" out of "Revolver Ocelot" to save my life. lol