Some pics addressing the sights on CD's and early post CD C.
The RD 250-3000 produced in 1974 and the new improved 7mm-08 1981 C had the same rear sight. This sight is on the C. I fumbled the windage screw and had to use a poor fitting replacement.
The CD with the rear sight removed. Note dovetail.
The C with the rear sight removed. no dovetail.
The CD's front sight
The C's front sight