"The GBRS Group Lerna Mount Kit is the industry's first red-dot optic mount designed to provide the ideal 2.91"" center-line height. The 2.91"" height provides faster target ID regardless of gear obstruction like ear protection or comms, gas masks, and night vision. The higher optic allows for a more athletic shooting position that maintains proper body armor presentation. Available in a number of red-dot specific footprints, the Lerna Mount is crafted from 7075-T6 aluminum with a Type III hardcoat-anodized finish. Attaches to standard Picatinny rails. All stainless steel hardware is included. Red dot optic mount with ideal 2.91"" center height Provides fast target ID regardless of gear interference Higher optic allows for more athletic shooting position 7075-T6 aluminum with Type III hardcoat anodized finish Attaches to standard Picatinny rails Installation hardware included"