The VSS Vintorez, is a suppressed sniper rifle developed in the late 1980s by TsNIITochMash and manufactured by the Tula Arsenal. The VSS (Russian: Vintovka Snayperskaya Spetsialnaya or "special sniper rifle"), also called the Vintorez ("thread cutter") is issued primarily to Spetsnaz units for undercover or clandestine operations, a role made evident by its ability to be stripped down for transport in a specially fitted briefcase. Cartridge: 9x39mm.
See Wiki: VSS Vintorez.