Streamlight Tailcap Assembly - PolyStinger LED/DS LED. If you need to install a new tailcap on a Streamlight PolyStinger LED or Polystinger DS LED Flashlight this Streamlight Tailcap Assembly is the part you need. We are your online source for official replacement Streamlight parts. We stock a full selection of replacement parts for Streamlight lights. No matter if it's a part of your Streamlight flash light that's worn out or a piece that was damaged on the job we've got the spare components and replacement parts you're looking for Features of Streamlight 76102 Tailcap Assembly for PolyStinger LED/DS LED Flashlights: Fits: PolyStinger LED Poly Stinger DS LED Flashlights Replacement Tailcap Assembly Package Contents: Streamlight Parts - Replacement Tailcap Assembly PolyStinger LED and DS LED Flashlights 76102 Streamlight Tailcap Assembly - PolyStinger LED/DS LED 76102