FEER SLK  PATENT# US 11644272 Field Expedient Elevated Riser SLK Compatible only with MAGPUL SL-K and SL-M Carbine Stocks For touchpoint based shooting, allows user to maintain positive cheek weld with various height options available. Elevated, tool-free buttstock riser Maintains positive cheek weld when running elevated optic mounts Multiple height options available  Adds .25”, .50” or .75” elevation over buttstock For use with holographic, red dot optics and scopes Full charging handle pull with stock collapsed and FEER mounted Made in USA from high strength 300°+ heat and solvent resistant nylon 12 Available in black or FDE CERAKOTE