The weapon can be fitted with a silencer but has very poor durability and will start to jam frequently very quickly. It also lacks an iron sight.
Though being the most powerful pistol to use the 9x19mm rounds, it is so rare that it is carried only by single character.
Acquisition
It is found only with Bullet's partner who needs rescuing from the Bandits. If he is rescued, he returns to the campsite near the entrance to Rostok in the Garbage and there is a slight chance he will be killed by incoming Bandit attacks.
Clear Sky
Characteristics
The weapon has decent accuracy and damage, it is lightweight, and now much more reliable as it is more durable.
Notable deployments
The Martha in Clear Sky is much more widespread and commonly employed by stalkers who use a Chaser 13 in tandem.
Upgrades
The weapon is cheap to upgrade and maintain, but only a limited amount of technicians can upgrade it. The technicians who can upgrade it include Yar, Thunderov,Garin and Aydar.
Call of Pripyat
Characteristics
This weapon also appears in Call of Pripyat. It is capable of fully-automatic fire with a 3rd tier upgrade. Unlike other pistols, when zoomed in the recoil pushes the gun back towards the player rather than up; this allows skilled users to deliver multiple accurate shots to specific body parts of opponents in a very short time. However, apart from that and the full-auto capability, it is inferior in every other aspect to the Walther P99. Unfortunately the full auto upgrade will degrade the weapon quickly.
Background information
Oddly, the CS description mentions that it was used by the US military and police units. Essentially this description fits the M9 pistol mostly known as the 92F, a handgun specially designed by Pietro Beretta for the US Military.
In SoC and CoP however, this description was removed and instead mentioned that it was used by special forces units
around the world. The M9 was never officially available to military units outside the United states, which would indicate that these are stock 92s or 92 DS models.