LaserMax Micro UniMax, Red Laser, Fits Picatinny, Black Finish, with Battery MICRO-2-R
Specifications:

Wavelength	650 nm
Dot Size
Power	<5mW
Range
Weight	.5 oz
Battery	CR1/3N 3V Lithium (1)
Laser Color	Red
Firearm Fit	Universal
Reticle
Power Switch	Ambidextrous On/Off
Adjustments	Windage & Elevation
Finish	Black
Mount Type	Picatinny/Mil-Spec/Weaver