Using a magnet to have quick/easy access in a car can work great where legal.?Have you considered a magnet under the dash.
I had a friend who kept his CZ Rami there in his truck.
You really couldn’t see it but it was convenient to grab if you needed it.
I’m not sure that would work for a relatively large gun (like a 229 or USPc), but for the smaller pocket guns it appears a reasonable alternative.
However, depending on your state/county, leaving a pistol in a car unlocked or unsecured may be a crime.
The low cost and small size of clamshell style car safes, really makes them a great alternative,
to merely stashing them out of sight.
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Yes a determined thief can/will eventually defeat them, but they work great to prevent walk-away theft.