Primary Arms SLx 3x Micro Prism Sight is an all-new advanced optical system that combines the compact, lightweight size of a microdot with the durability and precision of a 3x magnified optic. The SLx 3x MicroPrism offers 13 illumination settings with AutoLive motion-sensing on/off technology and multiple night vision compatibility options.This MicroPrism is part of the SLx optics line. SLx optics built the reputation for innovation, reliability and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment.Weighing under 8oz, the SLx 3x MicroPrism is smaller and lighter than many red dot sights, though its crystal-clear glass and 3x magnification offer improved precision at distance. Even in close-quarters, the optic's wide field-of-view and forgiving eye relief make it easy to snap on target. Because the SLx 3x MicroPrism uses an etched reticle with adjustable diopter, the user will always have a clear, crisp reticle image, ...