Monstrum Tactical 30mm Dot Scope Sight with Integrated Weaver/Picatinny Rail Mount, Red/Green 1x30mm reflex sight in a heavy duty, weatherproof scope enclosure Triangular reticle with illumination in red and green with five brightness settings Parallax free with flexible eye relief Mounts easily to any Weaver/Picatinny 1913 rail equipped flat top rifle Sturdy anodized aluminum construction with black matte finish