All ZKM 611 rifles are take down. The Brno ZKM 611 which I have, is the original model. Brno ZKM611A is late production with less external machining. I suggest that you go to RFC for info on internal quality of ZKM611A, if that is what you are looking at.
The rifle I saw at Gun City about two years ago was a ZKM611A. I understand that some one has been making them post Brno, with a .17HMR option but data is fairly sketchy.
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