Picture this, you can have an AR pistol in a backpack or as a truck/trunk gun and keep it within reach at all times all over the city or wherever you are.
The ballistics of rifle calibers far surpass that of pistol calibers, in velocity, penetration, and accuracy.
No pistol caliber is designed to be effective past 50 yards, and anything past that distance isn't a threat unless its shooting at you. So let's use 50 yards as a distance.. a 9mm or .40 will lose energy faster and have more bullet drop than any rifle caliber at that distance. Couple that with using defensive rounds... no brainer.
The ballistics of rifle calibers far surpass that of pistol calibers, in velocity, penetration, and accuracy.
No pistol caliber is designed to be effective past 50 yards, and anything past that distance isn't a threat unless its shooting at you. So let's use 50 yards as a distance.. a 9mm or .40 will lose energy faster and have more bullet drop than any rifle caliber at that distance. Couple that with using defensive rounds... no brainer.