Special thanks to Piotr Bojanowski of Poznan for assisting with information for this page.
After the failure of the CK-1, PCO continued development on collimator sights. This would result in the CK-2 prototype and in turn the CK-3 which would be tested and eventually adopted along side the Beryl and Mini Beryl rifles. While the CK-3 was adopted it does not appear that many orders were placed by the Polish army, and the sight saw only limited service.
A 2.5x magnifier that could be attached to the CK-3 was also developed. Like the LD-4 scope the CK-3 was intended to mount to the POPC-1 rail, with the rail being used to zero the sight to the rifle. On top of the CK-3 was a single BDC dial used to adjust the point of aim between 100m and 600m (Polish Ministry of Defense, 2005).
PCO would reuse the CK-3 name in the 2010s for a new red dot sight of a new design.
Images
Seen on a Mini Beryl using the POPC-1 rail. On the muzzle is a NGZ-93 incendiary rifle grenade.
An example of the POPC-1 rail that was used to zero the CK-3 to the rifle.
References
Polish Ministry of Defense (possibly written by Colonel Zdzisław Sakowski). (2005). "OPTYCZNE PRZYRZĄDY CELOWNICZE DO BRONI STRZELECKIEJ (OPTICAL SIGHTS FOR SMALL ARMS). Polish Ministry of Defense.
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