1.Compact but Accurate : Compact but powerful in function, adjustable windage and elevation can help you achieve accurate shooting during the day and at night. 2.Strong Adaptability : The red dot laser beam can be easily attaches to handguns/pistols/rifle with a 0.79"/20mm or 0.43"/11mm rail. 3.Ecellent Material : Made of superior aircraft grade aluminium, Excellent hardness and durability, shock proof, anti-vibration,anti fog. 4.Highly Visible : Improved Laser device provides military precision,ultra clearness and brightness,highly visible red dot even in daylight.Red laser dot can be seen with the naked eye at distances of up to 100 meters. 5.Upgraded Products : We have improved the problem that the switch cannot be turned off in similar products.