[mrerick]

Hi Bob and welcome to the forum.

As mentioned by Karl and David, the most likely cause is that the little plunger at the front of the sear bar is dirty and sticking. The spring is inside the plunger which is retained in the front end of the sear bar. Sometimes you can clean it with spray or soaking solvents. The plunger is the Luger's disconnector and involved in trigger reset.

The trigger plate and linkage of a Luger has to be hand fit. If your pistol is all matching and not heavily worn, the sticky plunger is probably it. If the plate or trigger linkage parts have been replaced then the fit of the parts is more possible. If this is the issue, don't try messing with this yourself. It takes some experience to do it right. At least a couple expert Luger gunsmiths habituate this board if you need help.

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