I respectfully disagree, Brent.
There are 3 safeties that are passive.
A double-action revolver doesn't usually have a safety.
If one wants an additional safety, see below for a simple, $20.00 solution.
Garrison Grip SAF-T-Blok Right Handed for All GLOCKs After Jan / 1998.More Info Below.
https://www.amazon.com/dp/B07F8G7DKM/ref=cm_sw_r_cp_apa_i_9pvvEbY3SH35P
Just so you know, I'm not one of those guys who has to be in one camp or another when it comes to guns, and I don't understand why people (not neccesarily you, Brent ) seem to have to be in one camp or another.
I have 2 9mm Glocks. A Glock 19, and a Glock 26 as a backup.
I like Glocks because I have commonality (every police dept. and many civilians) own Glocks, so magazines and parts are--theoretically--easier to acquire post SHTF.
The magazines for my Glock 19 will fit in the Glock 26, so I have a main gun and backup gun that take the same magazines and ammo, which seems like a good thing in an emergency.
Yet I own 4 1911s, 2 Browning Hi-power clones, and so on.
I like my 1911s because of the concealibility, the feel of the trigger, and for other reasons.
I feel like I'm an "eccentric" in the gun world because I like different guns for different applications in different circumstances and situations.
I'm friends with a nurse practitioner in Alaska, and she carries a .454 Casull loaded with 360 grain rounds, as she lives and works in an environment with Alaskan coastal brown bears, which are among the largest carnivores currently living on land. I would never carry such a thing . . . but then I don't have Alaskan brown bears to deal with.
How is using a variety of guns different from having a comprehensive toolbox with many different tools?
I said it before: If the only tool that you have is a hammer, then every problem begins to look like a nail.