Another thing you can do is, if you are on facebook, is to find and "like" the site "Guns save lives". The have lots and lots of true news stories about this. Print off a few of the stories for your mom, maybe, just maybe, reading a few accounts of the ugly realities of the world we live in will change her mind. On the other hand, she may be like my own mother was before her death--she had her own personal version of reality, and it did not include things like home invasions with rape and murder, etc. She simply was unwilling to face those realities. If that is the case with your mother, then all you can do is love her anyway, and continue to carry concealed at home.