Steiner ATLAS Green IR Laser Sights Black. 8 mrad maximum for ultra-long-range target engagement Ultra-wide 4050Fixed LED NIR illuminator beam divergence for CQB operations Medium range 1015LED NIR illuminator beam Long range 23VSCEL Illuminator beam with Minimum Speckle EXCEPTIONAL ERGONOMICS Low-profile integrated bolt-mount provides secure fit with lower height above rail for seamless use with standard optics 5-position mode switch and 3 tactile buttons within fingertip range All controls optimized around the operator True ambidextrous controls centered for left or right-handed operation with prominent positioning for use with gloved hands To reduce unit weight a Magnesium alloy has been used for the housing instead of Aluminum Battery Life: 8 hours depending on mode Package Contents: Steiner ATLAS Green IR Laser Sights Steiner 9061-BLK: ATLAS Red IR Laser Sights Black