Here is a set of CZ/BRNO rings to fit the 550 and ZKK series (19MM dovetail with lug). They are 1".
These are the original hilvers, not the cheap CZ copies.
This set has been finely polished and nitre blued to a deep translucent and lustrous blue, which is very beautiful indeed, the job was a good 3hrs to do and I have used them only once as I replaced them with QD mounts.
I would keep them but I just don't know when my next CZ/BRNO will come along, so might as well offer someone else the chance who wants to have a set that actually looks good.
with the work gone into them, I'm looking for £40 posted and no offers please.. I'd also trade them with a set of warne high cz527 split rings in 1".