Holographic Tactical Sight Red Dot Sight Scope

Constructed by aluminum alloy with anodized matte black processing
Anti-glare reflective coated lenses that gives good optical clarity
A 5-position rheostat illumination (Red & Green)
Offers 4 different reticles (Circle Dot, Cross, 1 MOA) for optimum versatility
Fully adjustable windage and elevation
With integrated mount for most 20mm Weaver/Picatinny/RIS rail
Rubber protective cover (Included)

Your E/D sight includes an integrated rail that fits standard, dovetailed bases. This is suitable for most applications. Because of unlimited eye-relief with the E/D sight, you should provide at least three inches of clearance between the end of LED & Mirror Housing and your eye. Set the rail onto the base so that the rail claw align with the crosscut grooves. Work the claw into the base until the cross-bolt seats into the groove. Securely tighten the locking screw with an Allen wrench included in the E/D sight.