CVLIFE Mini Red Dot Gun Sight Laser with Rail Mount for Pistol Handgun Low Profile Rifle Red dot sight, Power: &lt;5mW, Wavelength: 625-650nm, Range:50- 100m. Windage and elevation are adjustable. The small adjustment hole on the top is for elevation adjustment(adjust up/down). The other one on the side is for windage adjustment (right/ left). Comes with detachable rail mount, easily and conveniently mounted.. This laser sight can be mounted on any firearm with a picatinny or weaver rail. Made of high quality aluminum alloy, this sight is durable; Shock proof, can be used on real fire pistols, air pistols and rifles. Easy to operate the on and off of the red dot with the ON & OFF PRESS BUTTON which is located in the back of the dot sight.