not re-setting problem.

[stressed]

Originally Posted by John Sabato

The little spring plunger on the end of the sear must be sticking due to congealed lubricants and dirt that is decades old. Soak the front end of the sear in penetrating oil and make sure the plunger (actually the disconnector) has freedom of movement before you reassemble the upper. That should fix your problem. Let us know how it goes.

John, I thought of this but the plunger glides In N Out like glass. Almost no effort required to push in and out, and butter smooth. So I am thinking the springs. I can soak the plunger disconnected but I don't see it getting any smoother.

One thing I notice, is theoretically it would not be hard to make the gun full auto from modifications. Obviously this is illegal and I don't reccomend doing so. The weapon could fire as fast as the action cycles, which is very fast. I believe this was tested on artillery lugers in World War 1 but the ROF was too fast.