I ordered an optic plate from CZ-PART but it never come, wait 2 months for it but end up cancel it at the end. I ordered one from Cajun Gun Work. Fit & finish are very good no complain. I used a Trijicon SRO with this plate and it matched up very well. The plate came with a rear sight groove; however, it only fit with the Glock rear sight. In order to work with the front sight, the rear sight have to be 7.7mm tall. This is a very odd height and hard to find.