US company Battelle has developed a shoulder-mounted rifle to deal with unwanted drones flying around. Weapon specifically designed to target and knock drones out of the sky at a range of just 400 meters, without totally destroying them. DroneDefender weighs less than 5 kilograms and can disable a hostile drone within a 400-meter radius. The weapon is particularly useful when any drone is found equipped with an improvised explosive device. It can help us in numerous settings, from the White House lawn to bases and embassies overseas.
Source: https://thehackernews.com/2015/10/drone-defender-gun.html