RGZ-89 grenade

In 1987, the Department of Design and Operation of Classical Armaments (currently the Military Institute of Armament Technology) of the Military University of Technology began work on a new grenade to replace the RG-42 grenades. The new grenade was to be more effective and at the same time easier and cheaper to produce (the RG-42 grenade originated from the Second World War and was characterized by a complicated production technology). It was also required that the fragments of the new grenade, while being highly effective at hitting the target, would not pose a threat to the throwing soldier. Work began in 1989. The design team consisted of S. Ciepielski, S. Derecki, Z. Jopek, S. Majewski, J. Szymański and E. Włodarczyk. Initial theoretical calculations were carried out as part of the master's thesis by Second Lieutenant Jacek Walczewski (whose supervisor was Colonel Dr. Eng. Sylwester Majewski, a member of the design team). After testing several versions of the grenade, the designers decided on a grenade with a plastic body and a fragmentation insert in the form of a spiral duralumin wire. The design work was completed in 1992. In 1995, the production of the grenade commenced by Zakłady Metalowe Dezamet in Nowa Dęba.

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