Check the listing for details. Laspur Smart Sensor Sub Compact Rail Mount Low Profile Green Laser Sight. Color: Green, Condition: New. Listed at 41.98 USD. FEATURES★Low profile, Ultra-lightweight, compact, and tough design. Offers the brightest laser allowed by Law. Two working options （Continuous and pulse）, It gives you more choices. ★Smart switch design. The left side is the key switch, and the right side is the sensor switch. Long press left switch to change the working mode. Turn on the unit, put right finger over the Smart-Sense Switch to momentarily turn off the laser. Remove the right finger and the laser will turn back on. Flexible and quiet operation. The biggest advantage of this Smart-Sense Switch is that the opponent will not find your position before shooting. Especially suitable for home defense. ★Three bolt Picatinny mount holds to fit more pistols, Will not loosen due to vibration. The laser fits onto virtually any firearm with a modern (M1913 Pica tinny or Weaver-style) accessory rail. Fit rail-equipped pistols, handgun, rifles, and shotguns. it will easily accommodate most universal holsters. ★New charging system for maximum convenience. Can be powered by all common USB power sources. It save your time and you do not need to calibrate the laser next time. ★It is fully user-adjustable for Windage and Elevation with the provided tool, You can adjust and zero-in this laser easily. Also, if you don't like the product or if something happens to it please return it for a full refund or a new one! No questions asked! We are real humans in the United States with a real company and a real warrantyOPERATION 1. Single press left switch to turn on or off the device. 2. Under activation status, Long press left switch to change the working mode: Continuous and pulse.INSTALLATION REQUIREMENTSIf it meets the following two points, it can fit your pistol: ★First, It requires a standard accessory rail. Make sure your handgun has it. Compatible with Picatinny and Weaver rail. ★Second, Make sure at least 1.2" space between the rail groove and the trigger guardDETAILS★Laser output: