BARSKA 2x30 IR Tactical Dot Sight Riflescope Tactical riflescope with 2x magnification and 30mm objective lens Illuminated red-dot reticle with 7-position adjustment 1/2-inch click-adjustable windage and elevation adjustment Multicoated ruby lenses produce sharp images and minimal glare Measures 5.75 inches long and weighs 7 ounces; lifetime warranty