born2fly: Yeah I have been looking at the exploded parts diagram to plan the disassembly but that will have to wait, I have some traveling to do in the next two weeks; including our annual get together with my friend. So I will keep you posted.
: I noticed that all of my mags (all 4 of them0 were not catching the sliding bolt and continued to dry fire. "Referenced from above.
This was just the sear not meeting the upper "bolt" correctly; this is the real problem with the Umarex M1A1.
Cheap ass design of the Taiwan engineers. Using a Steel sear which hits a soft "white metal" cast stop; cheap but REALLY STUPID, BAD, BAD engineers.
For anyone's information, the Umarex Legends BB/pellet guns are all made with mostly cast "White Metal"
I will eventually fix that next probably with a 606T aluminum or a little steel block stop in the gun, I haven't decided yet.
One problem at a time.
Even though I have had to do some slight repair (After @11,000 BBs) My favorite BBs gun is still the Umarex M1A1 Thompson.