Monstrum R06 Tactical Red/Green Dot Reflex Sight with Weaver/Picatinny Rail Mount The R06 is a 1x26mm shielded reflex sight in a compact, yet rugged sunshade that shields off glare and protects against damage Four selectable reticle patterns, illumination in red and green, and adjustable brightness intensity, for a clean sight picture regardless of lighting conditions or environment Flexible eye relief, suitable for a wide range of shooters or firearms Mounts easily to any Weaver/Picatinny rail Sturdy anodized aluminum construction with black matte finish