In the Experimental Design Bureau (EDB) "Unmanned Aviation", they reported on the development of the multirotor UAV "Vector X-120", the weight of which is only 38 grams.
Our office specialists have developed a small quadcopter "Vector X-120", which weighs only 38 grams without payload. This is a disposable kamikaze drone, which will be used to destroy living human force by using existing army ammo [5.45 x 39 mm and 9 19 mm Luger caliber cartridges].
The maximum flight time of the "Vector X-120" is up to 6 minutes, the flight range is up to 2 km. And the maximum speed is 50 km/h.
"Vector X-120" is capable of quietly reaching the shelter and inflicting damage on the target directly inside the shelter. This cannot be done by a sniper or a soldier who shoots from any small arms, unless we are talking about heavy weapons like grenade launchers or serious anti-tank rifles, which are now very rare, as well as special cumulative-type ammunition.
The creators reported that the cost of the "Vector X-120" is 75-80 thousand rubles, and this is without taking into account the payload (that is, the cartridge).