Originally Posted By: Camprunner
On a striker fired pistol like Glock, S&W M&P, Ruger SR, H&K, XD etc -etc... When the gun is loaded with a round in the chamber is there a firing pin block safety so there is no way the firing pin could contact the bullet primer without trigger pull?
That is absolutely correct.
In most striker fired pistols, Glock for example, the firing pin is also not "primed" or pulled back with tension under a spring until the trigger is pulled.
So the firing pin has zero tension and it is completely blocked off by metal from the primer until the trigger is pulled.
It literally can't fire without the trigger being pulled.