Eugen,
You have asked this same question several times in different ways.
I think you worry too much!
While none of us want to "lose" a collectable to a broken part, they are just pieces of metal- no one will live or die if something breaks.
Well-I suppose someone could die due to a catastrophic failure, but that chance is minuscule, IMO.
I would suggest you build yourself a shooter luger from miscellaneous parts, that you gather here and there!
I am not a fan of the "modern" luger copies, Mauser or other.
But as I have said before, they cost more than an original piece in shooter condition! So why go there? Parts are also less readily available , though Tom does have some/most at present.
You will learn a world of stuff about lugers and how they work, and the result will be a piece you can shoot without fear of breaking something. The experience can be and would likely be very rewarding.
Just food for thought.
