I just purchased a BRNO ZKK-602 chambered for 8x68s. The front sight is missing the bead. Where can I purchase a replacement front sight?

NECG probably. Had my 602 shortened and the front sight changed for a white bead inside the hood.

http://www.newenglandcustomgun..._services/sights.asp

Probably faster and easier from Brownells.

http://www.brownells.com/rifle...sight-prod24836.aspx

These are "NECG" sights, which are in fact German made ERA-Recknagel sights.

Thanks for the replies. I wasn't sure the CZ 550 sight blades were interchangeable with the ZKK 602 blades.

Yes, they are the same. The replacement ones may be a tight fit, just sand off the bottom in small increments till they fit. Put a piece of 400, or better 600 wet-and-dry on a flat surface, and sand away slowly, checking frequently. Break off the edges of the dovetail first, so the fit bears on the sides and not the knife-edge.

It's much easier than trying to correct the sides of the dovetail, and the difference in height is insignificant.