If asked why I WANT an AR-15 I would simply reply 'why do you ask the question?' It is none of their business, etc.
But if you want of provide a more informed reply take a listen to this video from two well informed gun guys; Ken Hackathorn and Massad Ayoob talk about the parallels between the development of personal defense and law enforcement weapons, and why the AR-15 is an entirely appropriate weapon for defending your home.
And for another take try this blog post on Red State why some folks really do NEED an AR-15 pattern rifle.
But if you want of provide a more informed reply take a listen to this video from two well informed gun guys; Ken Hackathorn and Massad Ayoob talk about the parallels between the development of personal defense and law enforcement weapons, and why the AR-15 is an entirely appropriate weapon for defending your home.
And for another take try this blog post on Red State why some folks really do NEED an AR-15 pattern rifle.