Positively ID and track targets in confidence with the Streamlight® ProTac Rail Mount 2 88059 Long Gun Light. Featuring a dedicated fixed-mount for MIL-STD-1913 Picatinny rails, this weapon light boasts a single high-efficiency C4® LED bulb, delivering an impressive 625-lumen maximum output and illuminating targets out to 297 meters, while the durable, anodized aircraft aluminum housing with an impact-resistant tempered glass lens easily shrugs off punishing recoil. TEN-TAP® Programming offers 3 user-selectable operating modes: high/strobe, high only, and low/high. The High setting delivers a maximum output of 625 lumens for up to 2 hours; the Low setting delivers a maximum output of 60 lumens for up to 21 hours; and the Strobe setting, used for signaling or disorienting adversaries, operates for up to 2.5 hours. The removable, single-button control switch easily accommodates both right-and left-handed shooters and can be swapped out for the included remote pressure switch for more reliable performance in tactical environments. The user-friendly pressure switch features a button for constant on/off with a separate pressure zone for momentary activation, keeping you in complete control for superior light discipline. Operates on two CR123A lithium batteries (included). Waterproof (IPX7 with standard button switch or IPX4 with remote pressure switch).