index was dropped from the official piece name (but it still officially exists through the design and testing process); henceforth, the GRAU designation was used as the unique identifier, e.g., 152-мм пушка 2А36 (152 mm gun 2A36). This is the current system used by the Russian Federation's Agency for Missiles and Artillery (still known as GRAU) and the Russian Strategic Rocket Forces. References Artillery of Russia Artillery of the Soviet Union