HellFighter Underboss Weapons Light LED - 150 Lumens Long gun use only  not for use on handguns Options: Off / Light Only / Laser Only / Light and Laser Water Resistant - Adjustable Laser 635nm - Remote Switch included Length: 3.75 inches, Height: 2.125 inches, Width: 1.65 inches, Weight with batteries: 2.9 ounces, Powered by (2) cr123 lithium batteries - included One year warranty