An electromagnetically variable trigger force firing system for a firearm , the firing system comprising: a frame ; a striking member supported by the frame for movement between a rearward cocked position and forward firing position for discharging the firearm ; an electromagnetic actuator trigger unit affixed to the frame and comprising: a stationary yoke comprising an electromagnet coil ; a rotating member movable about a pivot axis relative to the stationary yoke and operable for releasing the striking member from the cocked position to the firing position; a trigger operably and physically coupled with an actuating section of the rotating member , the trigger manually movable by a user from a first position to a second position which rotates the rotating member for discharging the firearm; and a permanent magnet generating a static magnetic field in the stationary yoke and rotating member , the static magnetic field creating a primary resistance force opposing movement of the trigger when pulled by the user; an electric power source operably coupled to the coil ; the electromagnet coil when energized generating a user-adjustable secondary magnetic field interacting with the static magnetic field, the secondary magnetic field operating to change the primary resistance force dynamically during a trigger pull event initiated by the user. a frame ; a striking member supported by the frame for movement between a rearward cocked position and forward firing position for discharging the firearm ; an electromagnetic actuator trigger unit affixed to the frame and comprising: a stationary yoke comprising an electromagnet coil ; a rotating member movable about a pivot axis relative to the stationary yoke and operable for releasing the striking member from the cocked position to the firing position; a trigger operably and physically coupled with an actuating section of the rotating member , the trigger manually movable by a user from a first position to a second position which rotates the rotating member for discharging the firearm; and a permanent magnet generating a static magnetic field in the stationary yoke and rotating member , the static magnetic field creating a primary resistance force opposing movement of the trigger when pulled by the user; a stationary yoke comprising an electromagnet coil ; a rotating member movable about a pivot axis relative to the stationary yoke and operable for releasing the striking member from the cocked position to the firing position; a trigger operably and physically coupled with an actuating section of the rotating member , the trigger manually movable by a user from a first position to a second position which rotates the rotating member for discharging the firearm; and a permanent magnet generating a static magnetic field in the stationary yoke and rotating member , the static magnetic field creating a primary resistance force opposing movement of the trigger when pulled by the user; an electric power source operably coupled to the coil ; the electromagnet coil when energized generating a user-adjustable secondary magnetic field interacting with the static magnetic field, the secondary magnetic field operating to change the primary resistance force dynamically during a trigger pull event initiated by the user. <EOS>