Mini-14/30 MicroPrism Mount with integral clip guide
Place one of the #5-40 screw in the middle hole from the top down
Leaving that screw in place, trap it in place and flip. Screw the #10-32 screws in from the bottom and torque to 25 in-lbs. Use a medium strength thread locker.
Apply medium strength threadlocker to the trapped #5-40 screw.
Carefully install the mount and optic to the receiver using the single screw. Do not tighten yet.
Install the next two #5-40 screws and tighten all three to 14 in-lbs
Cutaway view gives a picture of how the screws interact with the optic and receiver.