I would hate for a gun to malfunction when I needed it, do not add to the possibility of a malfunction, by using a "smart gun". Your life could be on the line, and your going to trust a circuit board and the components of said ckt bd, with your life? Tiny little resistors, capacitors, Integrated circuits, are all very prone to malfunction, be it sooner or later. Water, humidity, cold, heat , vibration, dropping the gun, how about just firing the gun, anything and everything can and will go wrong with this technology. Do not fix it, unless it is broken.