The North American Arms .22 revolver is not very powerful or accurate… but one thing it has going for itself, is size!
Here it is next to my Kel-Tec P32, which is my smallest CCW gun, and is extremely easy to carry.
The NAA .22LR revolver could go into your pocket and you may even forget that it’s there. They are kind of painstaking to reload, as you need to remove the cylinder from the gun and knock out each spent round individually and load individually.
This, combined with the size and the cocking of the hammer for each shot shot makes shooting it kind of a chore when compared to most guns. I just didn’t really enjoy shooting it. Although, it is not meant for range shooting.
These guns are very small. Easy to conceal, even in the palm of your hand. I see them as a last ditch BUG (back up gun) though. The .22LR round in this gun produces more recoil than one would expect from a .22LR. Not to mention that the .22LR is not exactly the most daunting man stopper.
I think I would go with Velocitors or something more than bulk .22LR for carry in this gun.
This is a “point blank” kind of weapon. Not meant for accuracy at any distances.
It is impractical in many ways, but at the same time, the gun you have in your hand is much better than the one you left home in the safe, if you ever need it.

NAA .22LR revolver (left) vs Kel Tec P32 (right).