SureFire Replacement Flashlight Protective Rear Cap Switchs. The Z68 tailcap switch provides both momentary-on and constant-on activation - press for momentary Scout Light or flashlight activation press further to "click" the light into constant-on mode click again for off. The raised guard around the push-button is a first line of defense against accidental light activation during operations or (for flashlights) while carrying the light in a pocket or holster. A lock-out feature positively prevents activation during tactical operations transportation or storage. Made from aerospace aluminum and Mil-Spec hard-anodized for supreme durability. Specifications for SureFire Replacement Flashlight Protective Rear Cap Switch: Manufacturer: SureFire Color: Tan Condition: New Features of SureFire Replacement Flashlight Protective Rear Cap Switch: Aerospace grade aluminum construction MilSpec Type III Press for momentary-on press further for constant-on Lock-out feature prevents accidental activation during transport or storage Package Contents: SureFire Replacement Flashlight Protective Rear Cap Switch SureFire Z68-TN: Replacement Flashlight Protective Rear Cap Switchs