Precision CNC Machined from 6061-T6 Aircraft Grade Aluminum and Finished in a Matte Black Anodize. Distinctive Scalloped Picatinny Slots for Snag Free Accessory Mounting. Continuous Rail Edge Design Allows the Installation of Multiple Riser Mounts Side by Side to Form One Continuous Picatinny Rail. Utilizes Locking Torx Screws and Square-shaped Integral Recoil Stops for a Secure Zero Hold. 5.5″ in Length with a 0.5″ Saddle Height and 13 Picatinny Slots for Accommodate Many Different Optics. Significant Lightening Cuts Massively Reduce Weight Resulting in a Fully Capable, Light Weight, and Aesthetically Pleasing Picatinny Riser Mount. Includes T20 Torx Allen Wrench for a Simple and Friendly Installation