From time to time, you will find the roll pin that goes through the frame bent where they will misalign the grips with the frame. In these cases, we recommend that you replace the roll pin. You may also find the pin is offset and keeping one side of the grip from laying flat to the frame. Simply remove the grips and re-center the pin and reassemble the grips. DO NOT USE THE GRIP SCREW TO FORCE THE GRIPS TOGETHER.