I have a frame mount red dot on my CZ75 and am looking for flush slide racker for the rear dove tail so that I can remove the slide for cleaning. I can only find the czheckmate racker (which is the style I want) or a red dot mount racker (which will hit my frame mounted red dot mount). All I can find online are homemade slide rackers that are like that czheckmate but will fit the CZ75 slide. Does anyone sell these?