Between TFL and The High Road, I've seen about 10 threads with similar themes: What about mandating secure storage? While I believe that secure storage is a good idea, I do not believe that mandating it is. One of my problems with the thought is that mandating secure storage has the potential to disproportionately affect those who most need to defend themselves. For example, a single working mother in a less-than-spectacular inner city neighborhood. If the only thing she can afford is a $100 used Hi-Point that she buys from a friend, that additional $20 may be more than she's got. It's certainly a 20% bump in the total cost of exercising her 2A right.
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.