The FLIR ThermoSight HISS-XLR clip-on thermal weapon sight allows snipers to detect and recognize man-size targets in excess of 2,000 meters, an increase in engagement range of more than 25% compared to previous models. Designed to mount on any MIL-STD-1913 rail interface forward of an existing scope, HISS-XLR can interface with a wide range of day scopes and weapon platforms. Long-range optics coupled with an HD display provides crisp imagery, and portrait orientation compensates for bullet drop at extreme ranges. Highly portable, HISS-XLR interfaces to standard ballistic computing devices and laser rangefinders designed for sniper applications. The ability to adjust with an optional remote control pendant increases the warfighter’s shooting stability, minimizes unnecessary movement that can potentially reveal the location, and allows HISS-XLR to be set up for remote observation applications. Its distinctive combination of stand-off range and long-range target engagement provides snipers with unprecedented overmatch capability in all operational scenarios.