I had a chance to shoot the Erma SE 08/2 .22 kit today, Mounted on my commercial P-08.
Loaded one 22LR round in the magazine, racked the toggle. Round chambered OK. Pulled the trigger; round went off OK. Spent case ejected OK. It also ejected the extractor, extractor plunger, and extractor plunger spring. Not good.
I found all three pieces. The spring & plunger just fell off to the side; the spent case and the extractor itself were 20 feet downrange.
Anyone else have this happen??? I have an email asking the previous owner if he had any such instance, but I think he would have mentioned it.
Note: None of the pieces were damaged. They just came apart. I suspect the ammunition was 'too hot'. The Erma documents don't specify the type or velocity of ammunition. I'm going to try to find some 22 Target rounds (~1,000fps) and see how that works.