The eject brass his the receiver and bounces. It can easily hit a rear or front lens. The solution is to square out the ejection port, so the brass clears and flings to the side.
As for a mount, why not just screw a Weaver scope base to the ramp of the existing rear sight?
As for a mount, why not just screw a Weaver scope base to the ramp of the existing rear sight?

