This Meprolight USA MCO PRO Picatinny Riser Mount is CNC-machined from 6061-T6 aluminum with a matte black Type II anodized finish. Purpose-built for the Meprolight MCO PRO closed-emitter red dot sight, this one-piece modular riser mounts to standard MIL-STD-1913 Picatinny rails. Weighing 0.20 lbs, it provides a 1.93 optical centerline height for an elevated tactical sightline on AR-15 and flat-top carbine platforms. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or riser mounts. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.