There's a plunger on the bottom of the slide that I believe is the drop safety. If it is not depress the striker will not move forward. When you depress it you should be able to hear (if you have better hearing than me) the slide rattle.
With the striker back it should not move forward unless that plunger is depress which the slide accomplishes under normal firing.
Let us know if your not getting what I'm talking about.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."