[no4mk1t]

Here's a pic of the pistol c0cked, with the safety bar partially raised to show the gap between it and the sear bar. This is the first time I've been inside a Luger, so please point out what is as it should be and what is not.
I estimate the gap to be about .020.


In this pic, all I've done is press the trigger. The sear bar moves out into contact with the safety bar. It does not retract when the trigger is released, but it can be pressed back to its former position with finger pressure. At this point, if the safety is moved to the fire position, the striker falls.


Here's the striker. It is a pain to get an auto focus camera to focus on something like this. I do not see anything abnormal with the striker/sear bar contact surface.


The striker contact surface on the sear bar looks like it is rounded off a bit.


Here's some more pics of the sear bar. Maybe between the lot, an idea of the condition of the surface can be determined.
My gun tinkering experience says the sear bar contact surface is worn and is the culprit. But I've never tinkered with a Luger before, and that's why I'm here to get a group of knowledgeable folks to weigh in.