There are animations online showing how the Glock action and safeties work. I looked them up when I first had an opportunity to buy a Glock.

The striker is partially cocked until you pull the trigger. Until then it doesn't have enough energy to fire a round even if released. The striker also has a block until the trigger is pulled.

A holster that covers the trigger and only holstering when you can see the trigger are the keys.

A clip on IWB holster works for me. The weapon is holstered before t goes into the trousers.

__________________
Just Say No - To Social Media