It was first presented to the public at the MILIPOL Moscow trade show in April 1994 and adopted by the Ministry of Internal Affairs (MVD) shortly thereafter. The success of the OTs-14-4A in the hands of MVD personnel brought it to the attention of the Ministry of Defence (MO), who also had a requirement for such a weapon.[6] After a period of testing, the weapon was adopted for Spetsnaz forces and some airborne and specialist front-line combat units such as combat engineers.
WIKI : https://en.wikipedia.org/wiki/OTs-14_...
World of guns gun disassembly
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