The Leapers UTG Super Slim MRO® Mount is a Lower 1/3 Co-witness mount and includes MRO® Patrol Mounting Screws and Installation Tools. Mount is precision CNC machined from 6061-T6 aircraft grade aluminum and finished in a matte black and hard Anodized. Mount has a 0.86" Saddle Height Positions MRO®/MRO® Patrol at the Correct Height for a Lower 1/3 Co-witness in line with Standard Height AR Iron Sights. Utilizes a Locking Torx Screw and Square-shaped Integral Recoil Stops for a Secure Zero Hold. Significant Lightening Cuts Reduce Overall Weight and Bulk.