Streamlight Tailcap - PolyStinger. If you need to replace the Tailcap of a Stream Light PolyStinger Flashlight this Streamlight Tailcap is the part you need. Streamlight parts are available here We stock a full selection of replacement parts for Streamlight flashlights. Your Streamlight works hard - treat it well with genuine Streamlight replacement parts on sale right here at the best prices around Features of Streamlight 760057 Tailcap for Poly Stinger Flashlights: Fits: PolyStinger Flashlights Replacement Tailcap Package Contents: Streamlight Parts - Replacement Tailcap PolyStinger Flashlights 760057 Streamlight Tailcap - PolyStinger 760057