Red dot 11.3mm dot size at 10 yds 650nm laser beam 5mW (maximum legal power) Visible at 50yds (indoors, lit) & 100yds (outdoors, night) fits both Weaver & 11mm dovetail bases Two switches* *One switch is located on top of the body and the other, a momentary pressure sensitive switch and wire, can be mounted on the gun wherever you want to put it.