Patent ID: 8887615

Claim:
A firearm having dual barrels, comprising: a firearm body equipped with a small caliber barrel configured to fire small caliber bullets and a large caliber barrel configured to fire explosive bullets, the small caliber bullet or explosive bullet being selectively fired through a trigger; a selector installed on one side of the firearm body to select the type of bullet and the mode of firing; a fire control system installed on the firearm body and configured to aim the target both at day in a day mode and at night in a night mode and configured to provide firing data for the explosive bullet by measuring the distance to a target; a firearm switch unit installed on the firearm body and configured to transmit the information on the firing of a bullet which is input by a user to the fire control system; a fuse setter installed on the large caliber barrel of the firearm body to transmit a control signal of the fire control system to the fuse of the explosive bullet; and a sensor device unit installed on the firearm body to transmit the position of the selector and the sensed firing signal to the fire control system; wherein the fire control system comprises: a power switch which is connected to a power supply which introduces power during the daytime mode or night mode; a firearm connecting unit for interfacing with the firearm body; a laser range finding unit for measuring the distance to the target; a thermal image sensor unit for detecting a thermal image in the night mode; an image display unit which displays on an optical lens device the target distance acquired by the laser range finding unit and the thermal image detected by the thermal image sensor unit; a power distribution unit which supplies power to each these units; and a ballistic trajectory calculation unit which calculates the bullet trajectory according to the target distance, and which comprises a main control unit for controlling the firearm according to a signal transmitted by the firearm connecting unit and the control signal from the fuse of the explosive bullet to the fuse setter, and which comprises a menu selecting switch for selecting control menus.