[jndsn402]

I don't know personally, but presumably companies designing these guns have thought of the same concerns and made the rings to be durable and sizable.

Re battery dying - if I was designing a smart gun, I would have it default to a regular, usable-by-anyone gun if the power dies. That way you don't have to worry about mastermind criminals with EMP devices either.

[monochromatic]

So the whole thing is pointless, since I can just remove the battery?

[ceejayoz]

I've got kids toys that require a minute or two of swearing to get the battery compartment open. If my would-be assailant has the power to keep me contained for that long while he tinkers with my smart gun, I've got other troubles.

It'd at least prevent someone from grabbing your gun and immediately shooting you with it.

[monochromatic]

So would a retention holster.