Just something to think about, gentlemen.....
A pistol is a pistol and a rifle is a rifle. A rifle in a pistol caliber is just a long barreled pistol.
Carbines in rifle calibers are the most effective defensive weapon. An AR-15 is a great defensive weapon. If I have a choice, that will be the weapon that I pick up when the goblins invade.
As Clint Smith says,"If you know you're going to be in a gunfight, bring a magazine fed rifle and several friends with rifles. If no rifle is available, bring a 12 gauge shotgun with 00 Buckshot. If no shotgun is available, bring a pistol, preferably one whose caliber starts with a '4'."