The sight base has a screw in the front and back which thread into the barrel. The inner dovetail/sight covers these screws partially. I will 1st need to remove the dovetail in order to access these screws. I was able to remove the flip up sightblade that was pinned, however that still does not give me enough clearance. I sprayed it with PB Blaster last night and will try to give it a little heat from a heat gun to see if it helps it slide out.
