Streamlight ProTac Rail Mount 2 Weapon Light
The Streamlight ProTac Rail Mount 2 is a fixed-mount long gun light built around a MIL-STD-1913 (Picatinny) rail clamp with a thumbscrew interface. Output and runtime vary by production version; see photos/markings for the exact variant.
TEN-TAP programming provides three selectable operating modes (High/Strobe, High Only, or Low/High). The light runs on two CR123A lithium batteries and features an anodized aluminum body with a glass lens.