Hi there

Just finished my PAL/RPAL courses and wanted to sort out some lingering questions hope I am in the right spot.

With the double, on semi auto, I know some differences would include the slide safety, the trigger shape, and the hammer not being exposed on some models.
With the single action the trigger is often solid or a distinctly different shape and...

here is my question

The instructor was talking about something related to the firing pin and how dropping a single action on the ground can sometimes result in misfires where a double action wouldn't, and a double being safer and that's why most law enforcement use a double.

At any rate, the course was great but as you know time is limited and we focused more on practical handling and basic information to pass the written, I didn't really get the specific differences clearly explained.

ALSO
For revolver action, which has which kind of safety? I know one has a plate that IS the safety, and one has like, a plate and WITHOUT it the gun wont fire, I forget which is which. I am pretty sure the single action has the firing plate you need and the double action has the hammer guard plate but I forget.


Thanks very much!