Russian Made PSS

Continuing on Silencers one poster mentioned the PSS semi auto that the KGB developed. It is unique because the ammo is silent.



























Facts about this unique firearm:
PSS is a 7.62x42mm Silenced Pistol.
The PSS was designed for the KGB in 1983 as a special silent pistol, useful primarily in assassination. It fires the silent SP-4 cartridge, which features an internal gas lock that essentially eliminates all sound without the need for a suppressor. The loudest noise is that of the weapon cycling, making it as stealthy as an airgun. All this can be achieved in a very small weapon, due to the lack of a suppressor. The subsonic SP-4 cartridge can also penetrate a steel helmet at 25 meters.
The PSS is used by Russian Spetznas and the Russian Foreign Intelligence Service.
Two earlier designs, the MSP and S-4M, were limited to only two shots and were thus deemed unacceptable. The PSS was then developed with a magazine capacity of 6-rounds and was promptly adopted by the KGB for use with their special forces troops.
The PSS was developed for covert operations and uses a unique cartridge with an internal piston to remain silent. When fired, the gun's piston launches the bullet from the barrel and then seals the neck before noise, smoke or blast can escape.
The PSS is still used today by various countries.