The CK-01 was Collimator(?) sight maufactured in small numbers in Poland. Unclear if it ever went pass the testing phase.
Any additional information or photos would be appreciated.
Images
Mounted on a Onyks wz.89 Carbine. Notice the eye piece is shorter than on the top photo.
Mounted on a Mini Beryl. Note it is mounted on a rail further back when compared to the Tantal/Onyks rear sight mounting point. Unclear if this is a development of the CK-01 or an entirely new sight. On the muzzle is a incendiary grenade NGZ-93(?).
Example of rear sight block sight rail used to mount CK-01 on Tantal and Beryl rifles.