I'll put my Mini against an AR in a reliability test any day, providing you buy the ammo. I have neither the funds nor the desire to prove the point. My 580 series will shoot about 2" at 100 yards with good ammo. That's plenty for it's intended purpose and there are no small parts inside of it to break.
"If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun."
- The Dalai Lama