Streamlight Contoured Remote Switch for TLR Weapon Lights gives your tactical light swift on/off capabilities. This remote pressure switch fits snugly around the trigger guard of a Glock 17/22 and 19/23 size frames and allows light to activate with a naturally firing grip. It includes a rocker switch option for support-hand control, and locked-on operation. This flashlight accessory is designed exclusively for the Streamlight TLR-1 and Streamlight TLR-2 Weapon Lights, including the Strobe models.