Sasaferrato
Super Refuser!
Can't recall where I read it a few days ago, but IIRC it was a German security source who was quoted as saying that of the approx. 21,000 Reichsbürgers, Germany's police/intelligence bods estimated that 10% of these had military training, weapons, or access to weapons, and were prepared to use them in furtherance of their aims. I'll see if I can find the quote but if I'm remembering that correct (quite possibly not as my short-term memory is going west), 2,100 is quite a sizeable number of far-right types ready to violently overthrow the state... far more than in the UK I would guess. More like the USA.
My first thought on hearing about this coup attempt was, like you, Sas, and frogwoman too, there's more to this than we are at first being told.
Maybe some of these 2,100 are serving members of Germany's armed forces, police or intelligence? Time will tell - or not
The heavy restrictions on the owning of weapons, particularly handguns, makes such a thing in the UK much less likely.
There is also the fact that extremist organisations tend to leak like sieves, so the authorities tend to get a 'heads up' well before anything untoward happens.