Heck, Native Texan used to hunt Cape Buffalo and Polar bears with one of those. He's not as sneaky as he used to be. He used to be able to sneak up on his prey and stick his revolver in their ears and squeeze the trigger!
Is it a handgun? Maybe a thumbgun, as in "you could hide it under your thumb?"
Those little NAAs are cool though. I carry a .22LR around the house at times, as a scare-the-coyote away tool. It's dispatched a glue trapped mouse or two. The .22 Short would be even better for that; less noise in the neighborhood.
I really like the North American Arms Mini Revolvers and was even considering getting a Sidewinder in .22WMR for a time, but the price was too high at the time ($500+) and modern .380 Pocket Pistols are cheaper, safer, more reliable, more powerful, and yet still plenty small/light enough for deep concealment.
I ultimately ended up getting a Ruger LCP which I practically take everywhere with me because it's so small, so lightweight, and so convenient to carry that it honestly requires more effort to leave it behind. When it's not tucked in my pocket, then it sits somewhere nearby me where I can easily grab it at a moment's notice.
It's honestly so light that at times I forgot that it was even on me. Recently I accidentally took it into the shower with me while it was still tucked inside the pocket of my swimming trunks. There was also a time when I briefly lost it inbetween the cushions of my recliner, so I have no need for a smaller, lighter firearm.
Even when I'm out and about carrying a more powerful firearm on my belt such as my SW40VE, the LCP still rides along as a BUG.
Still, I like the NAA Mini Revolvers, and if you for some reason see yourself needing the absolute smallest, lightest, ultimate deep concealment firearm which is capable of firing more than two shots before being reloaded, then the NAA Mini Revolvers, (especially the Sidewinder or Ranger models with swing-out cylinders or top-break actions) are the obvious go-to guns for the job.