It needs to hit like a .500 Magnum but carry like a Ruger LCP.
It ought to shoot a round that is cheap and easy to get.
It needs to have holster, sights, and magazines easily available.
It should have the reliability of a revolver and the capacity of a semi auto.
what would you carry concealed all the time
I haven't owned or shot all guns, so I don't know that that there is a ultimate carry gun.If you could afford to have any handgun,
What's the ultimate Carry handgun