The Sightmark 3x Tactical Magnifier with the slide to side mount is designed for use in conjunction with holographic, collimated reflex, and other compatible weapons sights, giving the shooter the benefit of a reflex sight and scope in one combination. The magnifier increases the magnification of the accompanying sight for greater sighting range and improves target recognition, especially at medium range distances. The Sightmark 3x Tactical Magnifier can assist in quick target acquisition up to 200 yards and accurate target shooting at 100 yards. The Sightmark Tactical Magnifier also features extended eye relief for comfort, a wide field of view for superior target acquisition and high quality multicoated optics for improved visibility and clarity. The Sightmark 3x Tactical Magnifier can be mounted on most picatinny and weaver mounts and is designed to work with EOTech, Aimpoint, Trijicon and other brands. A lightweight, waterproof, fog proof and shatter-proof frame provides durability in all elements