Sightmark's LoPro Green Laser features an innovative, low-profile design, allowing shooters to mount it in front of a riflescope on a picatinny or Weaver rail without blocking the field-of-view. The Sightmark LoPro can also be mounted on the side of a quad rail for maximum efficiency. The laser is offset, clearing the front sight post to ensure perfectly centered aim of the laser. With 1 MOA-click value adjustments, the hand adjustable windage and elevation turrets allow the user to zero in the laser dot for close-range shooting. Visibility ranges approximately 50 yards in the daytime to more than 600 yards at night. The device is corrosion resistant, weatherproof, shockproof. Exceptionally reliable and durable, the device provides 27 hours of continuous use with a single CR123A battery and includes a pressure pad for easy activation.