The Sightmark LoPro Green Laser features a low profile design, allowing it to be mounted in front of a riflescope without interference with field of view. Designed to be mounted on a picatinny or weaver rail for an AR15, the LoPro Green Laser can also be mounted on the side of the quad rail. The laser is offset for clearing front sight post. Featuring 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 from 50 yards in the daytime to 600 yards at night. Featuring a matte black finish, the LoPro Green Laser is constructed of a high performance thermoplastic, so it is heat and corrosion resistant, impact resistant, waterproof and shockproof. Reliable and durable, the Sightmark LoPro Green Laser takes one CR123 battery and has 27 hours of battery life and comes with a Velcro strips so switch can be mounted for easy turn on/off.