Wikipedia
TsNIITochMash
TSNIITOCHMASH (Russian: ЦНИИТОЧМАШ) is an initialism for the Central Scientific - Research Institute for Precision Machine Engineering , a Russian industrial design bureau. TSNIITOCHMASH is a major designer and producer of weapons for the Russian military and MVD Internal Troops.
TSNIITOCHMASH determines the development of and develops small arms and simulators for them, individual field equipment, conducts R&D on control systems for precision-guided munitions (as well as protection against them), field artillery systems and new materials. It also develops most cartridges, from small arms up to 14.5×114mm, for the Russian Army.