The MAX-9 #90745 Slide Assembly comes equipped with a ReadyDot micro reflex light-gathering fiber optic red dot sight already installed. Fits on MAX-9 pistols equipped with a loaded chamber indicator (model 3518). These accessories replace the pistol’s slide with an optics-ready, direct mount slide for co-witnessed JPoint and Shield-pattern micro red dot sights. Comes turnkey with all sights, barrel, extractor and other slide components to simplify installation using the included installation instructions.