*Illuminated red and green dot sight with 4 patterns and 7 brightness levels of each color, easily controlled with two knobs.*PEPR cantilever mount fits any 20mm picatinny or weaver rail, precise windage and elevation adjustment.*Red or green illuminated dual dot reticles with 5 adjustable brightness levels, built-in green laser can reach 300+ yards.Illuminated Red & Green Dot Sight with 4 patterns and 7 levels of brightness of each color, which is easily controlled by two knobs.