FN America SC Rear Stock, Telescoping 3 Position Stock, Fits FN SCAR 16S/17S/20S, Matte Finish, Black, Includes Stock Assembly, SCAR-SC Rear Plate and (5) Screws 20-100826 Enhance your FN SCAR with the SCAR SC telescoping rear stock kit. Fully collapsible with three positions and a contoured rubber cheek and buttpad provide added comfort to improve your shooting experience.