The Holosun LS321R is a 7075 Aluminum bodied multi- laser aiming device. Zeroing is easy with the coaxially mounted class IIIA visible red laser, class 2M IR laser, and IR Illuminator. With a quick release picatinny rail mount, a remote pressure switch and IP67 water resistance level, this coaxial multi-laser is the perfect addition to any rifle or PDW. In the Box: QD Release MountRemote Cable SwitchT10 L KeyCR123A BatteryUser ManualFeatures of the Holosun LS321RCoaxial Dual Laser & IR IlluminatorHigh/Low Brightness SettingRemote Cable SwitchQuick Release MountIP67 Waterproof Holosun LS321R Coaxial Red, IR and Illuminator Laser Sight w/ QD Picatinny Rail Mount - LS321R