The Kimber KDS9c RMSc and Holosun K Adapter Plate allows shooters to cleanly mount slim-profile micro red dot sights onto their optics-ready slide layout. Created in partnership with C & H Precision, this mounting solution uses premium S7 tool steel components to handle heavy slide cycling while preventing screw stripping over long-term range use. It features a built-in fixed, serrated black rear sight that aligns perfectly with your factory front sight to establish a backup lower co-witness. This drop-in kit skips advanced custom machining, creating a lower-profile configuration optimized for daily concealed carry comfort. Kimber KDS9c Optic Adapter Plate w/fixed Rear Sight for RMSc and Holosun K Footprint 4200592