The FCS12 incorporates an eye safe 1550nm laser range finder, as well as sensors that measure aiming angle and environmental conditions to provide the operator a range-adjusted point of aim on measured targets. The onboard computer allows the unit to store ballistic algorithms for up to 50 different munitions, five of which can then be entered on a short list to ensure rapid selection by the operator in a combat situation. After measurement of the distance to the target is initiated by the operator, a compensated point-of-aim is calculated and presented instantly, allowing the operator to fire the weapon immediately. The most important features of this optic can be accessed using a remote wireless control module that can be operated under stress without removing gloves or requiring the operator to change their grip on the weapon. The FCS12 is built to stand up to harsh field conditions, and its solid state design does not rely on any fragile motors or sensitive moving parts.
The FCS12 system is suitable for use on shoulder mounted rocket launchers such as the Carl Gustav and Panzerfaust, as well as 40mm automatic grenade launchers including the MK19, MK47 and GMG. The system is powered by a quickly changeable internal power pack using replaceable standard AA batteries, and is compatible with all generations of night vision devices.