Abstract: Disclosed is a system for delivering a facet screw assembly to a facet joint. The system includes a facet screw assembly and a delivery device. The distal end of the delivery device includes a facet screw engagement feature, which is keyed to a corresponding delivery device engagement feature. In other embodiments, the system may include a facet screw assembly, a facet access guide, a washer sizer tool removably engaged with the facet access guide, a lateral mass decorticator guide slidably and removably engaged with the washer size tool, a washer implant delivery tool removably engaged with the facet access guide and detachably coupled to the facet screw assembly, and optionally an impact handle detachably coupled to the facet access guide, washer sizer tool, and washer implant delivery tool.