The Primary Arms SLx 1x Microprism Red Dot Sight is an all-new advanced optical system designed from the ground up in an ultra-compact housing, allowing use of backup iron sights and magnifiers. SLx optics built our reputation for innovation, reliability, and value. All SLx optics undergo rigorous field-testing during development to best serve you in any environment. In this case, we put the optic through over 7,000 rounds of .308 through a SCAR 17s.Using cutting-edge LED technology, the SLx 1x MicroPrism offers 13 illumination settings with AutoLive motion-sensing on/off technology and three night vision settings. At maximum illumination, the MicroPrism offers true daylight bright performance, while the innovative low-power sleep mode safeguards battery life for reliable 'always-on'storage. Though small in size, virtually no sacrifice was made for eye relief and even offers a generous field of view.This package also includes the new ruggedized mounting system with industry standard...