What is "smartgun"

A smartgun is a weapon (usually a handgun) fitted with a fire-control system. The defining feature of a smartgun is the ability to accurately convey where the weapon is aimed (usually via some sort of Head-up display), and, in the more advanced versions, to target itself within certain limitations set by the users. The purpose of such systems is to allow the precise aiming of automatic fire and the reduction of friendly fire casualties, as in the United States Army's real-world Land Warrior program.