Had a Belgium made baby Browning .25 auto, and stupidly sold it. Smallest now is a Freedom Arms .22 in the belt buckle and an NAA .22, that in a kydex holster on a neck cord, both 5 shot LRs
Both of these should qualify, an 1898 H&R pocket in .22short And a Cobra in .22LR and .22WMR Smallest I have that actually shoot.
Smallest, strangest; a Bernardelli Baby in .22 Long. Not Long Rifle, Long. It would be hard to feed now, but back then, ammo could be had about anywhere.
NAA mini in 22mag. One of the few firearms I regret selling. Even with the small grip I was quite accurate with it. Shooting 20oz bottles at 7-10 yards was pretty entertaining.
I must say its my Ruger SP 101....I can handle the recoil with no discomfort at all even shooting .357 hollow point....I can even conceal it when I wear a loose blouse. I really don't like recoil so it suits me to a tee
Davis stack barrel rimfire darrenger. Small enough to fit completely in blue jean watch pocket. My smallest, also the heaviest trigger pull of any firearm (18 lbs).
I had an RG 5-shot .22 revolver with a wobbly pinned barrel. If I oriented it correctly, it would lay on my palm without overlapping. My current general EDC is a Ruger LC9s, and it's not a lot larger than that RG was.
I've had a Beretta Bobcat in .22...well two of them. Beretta Tomcat in .32 and many, many years ago a Browning .25 cal that I traded a guy for my first Bobcat.
I have always wanted to get the .22 short version of the NAA mini but I can barely hold onto the .22lr version so going smaller doesn't make any sense.
I have VERY long fingers (2XL gloves) and the Hogue grip on my Beretta is just about to big for me. I love Hoge and Pachmeyer finger grove rubber grips because I get a better grip on the hand gun and better control with less grip effort. I think I might go back to the stock grips on my Beretta though. I love the finger groove grips on my 1911's and don't think I would own a 1911 without them! P.S. For comparison I have absolutely no problem with the size of the Grip on my Desert Eagle L5!