Cary a concealed weapon-GUN! part2
Well....... which gun.
Rifles are almost always best but they do not conceal well, shotguns also, so.....(joke there...)..... we are at handguns.
Handle and test fire as many as possible. Don't worry about caliber as long as it is .380 or bigger or, for wheel gunners .38 Special, but find a gun you like and are comfortable with. But any gun is better than none. I carry a .32 ACP when a full size rig won't work for the way I'm dressed.
Don't let someone make this choice for you your firearm is a very personal item and decision.