FWIW - like disconnects or not - I'll post my frequent reminder that any of the S&W 39/59 pattern pistols can be fired with the magazine removed.

I know of two accidental deaths when the users inadvertently discovered this.

Of course, the two digit pistols can inertia fire with the magazine removed.

Relying on the disconnect rather than unloading -- removing the magazine while leaving a round in the chamber -- was always a bad idea. I never saw it suggested after the mid 1970's.

Interestingly, some young friends still in the business report that they've never had weapon retention training, in the academy or later.