In my opinion, the AR is the ideal low-training Home Defense weapon. - it's a long gun: hit probability is WAY up vs a sidearm. - the hits you get are much more effective than a handgun - you can load bullets that won't pinhole through the rest of the houses on the street but are still extremely effective - it's low recoil vs a shotgun - it's simple to operate: safety and trigger - it's trivial to add a flashlight - it provides 30 (or 28) shots. . . if you need a mag change. . . Other than being a little louder than a shotgun, it's perfect for your non-enthusiast wife. Shoot outside with plugs and muffs, and I think she'll warm up.