In the early 1970s, the M18A1 was copied in the former Yugoslavia. The Yugoslav version of the American Claymore mine was called MRUD.
The MRUD mine is designed to engage manpower in a specific direction and is used primarily to cover positions, approaches, and perimeters.
The MRUD mine consists of a curved plastic case, inside which is placed the charge and striking elements oriented in one direction. The upper part has nodes for installing the initiation means.
The principle of operation of the MRUD mine is a directional impact in the front sector. After the triggering mechanism is triggered, the charge detonates, as a result of which the striking elements are thrown forward in a certain direction, forming a dense sector of damage. Due to the curved shape of the body, the concentration of the action is ensured precisely in the selected direction, and not in a circle.
The mine can be installed on the ground (for this it has two pairs of legs) or on local objects. As a rule, the mine is controlled by wires, for which its kit includes 30 m of electric wire with an electric detonator and a portable blasting machine. It is provided to connect several mines into a single network for their simultaneous initiation.