Okay i was having a think and tinker with the gun the other day. The tech that had tried to previously fix this gun must have jammed in tiny springs on the wrong side of the nozzle. These springs were like maybe 1 cm long? It was causing the nozzle to not seat correctly, you notice the gap of about 4 mm on the underside of the slide. I assumed that this gun didn't have any slide springs as they usually fall out easily as i am careful to not lose these springs, however guns seem to perform well without them.
I took these tiny springs out and the nozzle now can fully reciprocate and the gun now closes into battery flawlessly now. The thread can now be closed.
Jamoy got a reaction from Tackle in KWC Glock 19 - Slide needs to be forced to fully engage into battery