I am wanting to invest in a flashlight and laser for CQB as my CQB site is dark in some areas, and the laser would be for pointing things out to teammates. I found this for sale: https://www.tactical-clothing.co.uk/lights-optics-c409/weapon-lights-c412/wadsn-tactical-augmented-dual-fnctn-switch-with-lock-for-surefire-2-5mm-black-p12612 I am just wondering if the switch for the flashlight works on any flashlight or if I need to buy a specific pressure switch flashlight. Any help will be appreciated. Thanks