This 5mW red laser made of anodized aircraft grade aluminum is designed to me mounted to the rail system of most rifles or pistols. It is excellent for quick target acquisition and is adjustable for windage and elevation. It includes a continuous on/off end cap and momentary on/off wire pressure switch. It is 2.25" long and works in 35F-90F temperatures.The 5 mW pistol/rifle laser sight comes standard with picatinny mount and is equally useful on pistols or long guns. Included is a wire pressure switch and ambidextrous on/off end cap switch. Features: Windage and elevation adjustment Excellent for quick target acquisition