Our all new Gen II Max Duty version of the original Armson O.E.G. sight is now available for simple bolt on installation on any Picatinny Rail System(Gen I Max Duty pictured). The Armson Aiming Concept instantly merges the dot and target allowing two eye sighting with no loss of peripheral vision! Anodized aluminum body, high quality internal optics, and simple adjustments for windage and elevation. A fiber optic light source provides illumination during the day and the optional Tritium upgrade self-powers the sight in low light conditions (must be added as an option below). No batteries required. The all new Upgraded Adjuster and Knob Set is now included as a standard feature at no additional charge.