Weapon-mounted flashlights attach to firearms and provide illumination for accurate targeting. Also known as weapon-mounted lights (WML), they eliminate the need for a separate flashlight to identify targets and keep both hands free to position the weapon. They are lightweight and compact to maintain the balance of the firearm. These rail-mounted tactical lights mount to specific rail systems, which provide a platform for lights, sights, and other accessories. They are commonly used by law enforcement and military personnel.