Hi guys, thanks for the replies! I provided a pic of the area, and put red lines showing the width I'm interested in (dont mind the green, I just put that in to see the red better). All 3 of them will be the same width. As for the AK comment, I have no idea if they have the same groove or not.
I'm interested if the width is 14mm so I can use the RS 97 Picatinny mount for another 14mm dovetail I have. If that area is only 11/12mm, then it will be a no-go.