Does your gun safe have a backup manual key lock?
# 10 Negative. What a nightmare to have everything locked up at such a time.
In case of an EMP frying the combo lock’s innards? I have plenty of 9v batteries, and can change-one-out in 3-4secs, but bow you got me thinking. I don’t know if something that massive can be retrofitted with a key. I’m checking...