VSS Vintorez? Special Units' weapon. Was developed more than ten years, passing dozens of tests. Needed a kind of universal weapon - for missions where you need to quitely appear, carry out the operation, and quitely leave. All other weapons had many minuses. This is - light, compact, can be taken apart piece by piece and hidden anywhere....then reassemble. Pierces steel army helmet from 400 meters and light armor. It has the ability to use optical sights during the day and electro-optical at night, tactical lights, thermal imagers. And it is - Silent. It has special, original, integrated silencer. The weapon's unofficial second name - "Silent Death".
There was a real case.....when one man with this weapon eliminated the entire enemy commando group, before the moment they could understand where the fire was coming from.
https://s3.gifyu.com/images/Vint2.jpg