The Streamlight Contour Remote Switch for the TLR1 and TLR2 flashlight is ambidextrous with a momentary or steady on/off switch. The Contour Remote Switch has been extensively live-fire tested resulting in an impact resistant construction. This model fits Smith & Wesson M & P auto loading pistols. – Tethered rubber weather cap keeps connector dry when remote is not in use – All remotes feature rotating quick disconnect plug with O-ring seal – All remotes include mounting accessories