This MAX-9 Long Slide Assembly with ReadyDot Sight allows for installation of micro red dot optics on MAX-9 pistols. This Slide Assembly comes equipped with a ReadyDot micro reflex light-gathering fiber optic red dot sight already installed. It also comes turnkey with all sights, 4" barrel, extractor and other slide components to simplify installation using the included installation instructions (attached below). Read the included instructions and warnings carefully before installing and using this slide assembly. This Genuine Ruger Factory Accessory is made in the USA.