I own a C-9 9mm. I have recently changed my Adjustable Rear Sight Assembly and installed a Ghost Ring Sight. I went and tried to sight it. I tried using a "clamp" that was used for riffles. I could not get a solid enough grip to stop it from moving too much. My Rear Sight Assembly doesn't look/feel right either. It sticks up where the ghost ring is installed. It seems to spongy because of the spring. The old assembly was damaged so I have nothing to compare with. Also when adjusting ghost ring (left/right) the assembly wont move very easily and when it does it twists the assembly. What is the best way to secure the pistol for sighting? :cantlook: