The SR Remote Dual Switch provides remote activation for any SureFire Weapon Light with a switch socket. Two switches a momentary-on pressure pad switch and a constant-on pushbutton switch are integrated with a snap-on clamp for easy attachment to your firearm’s picatinny rail forend. It is compatible with Millennium Universal Classic Universal Scout Light with socketed tailcap and X200 X300 and X400 with XT tailcap.