S.T.A.L.K.E.R. Wiki
The subject of this article appears in S.T.A.L.K.E.R. 2: Heart of Chornobyl.

The personal firearm of the Shah, the kingpin of the Brood, is a custom order from the Mainland, complete with an extended magazine. You won’t find another gun quite like this in all of Garbage!

Heart of Chornobyl in-game description

Shah's Mate is a unique Viper-5 available in S.T.A.L.K.E.R. 2: Heart of Chornobyl.

Overview[]

Formerly the Shah's SMG, the Shah's Mate has 20% more damage, better accuracy and a unique finish.
Additionally, it can be used during the quest King of the Hill to get access to The Brood's base.

Acquisition[]

Found in The Shah's Stash given by Docent at the end of No Honor Among Thieves if hes spared.
The Stash is a backpack found NW of the Maze in a tunnel.
The backpack only spawns if given the coordinates to it.

Upgrades[]

Color-coded upgrades are mutually exclusive. Prices based on Stalker difficulty.

Automatic Two-Stage Gas Regulator (300 )
Wear and tear 15%
A mechanism that reduces weapon fouling.
Individual Adjustment (500 )
Moving while aiming 15%
Customizing the grip to match the shooter’s hand maximizes comfort when handling the weapon.
Change caliber to .45 (1500 )
Caliber-change
Damage increase 20%
Recoil decrease -20%
This modification can only be done once, since it involves replacing the barrel to accommodate the new caliber.
Rubber Layer (1300 )
Recoil decrease 15%
Partially dampens recoil.
Tin Coating on Barrel’s Inner Surface (350 )
Bullet velocity 15%
Minimizes the gap between the barrel and the bullet to improve the efficiency of barrel gases.
Barrel Chrome Plating (300 )
Wear and tear from external sources 20%
Protects the barrel from wear and tear.
Extra Barrel Rifling (800 )
Armor-piercing power 30%
Reduces bullet deterioration within the barrel to preserve its intended design characteristics.
Return Mechanism Sleeve Tightener (700 )
Bullet range 20%
Increases barrel pressure, resulting in increased muzzle velocity.
Counterweight (1300 )
Spread decrease 20%
The addition of the counterweight enhances stability, reducing spread when firing.

Modules[]

Scope Mount (900 )
Allows the user to attach a range of scopes to the weapon.
Laser Designator (1100 )
Aiming speed 5%
Spread decrease 15%
+0.5kg
A laser designator facilitates faster, easier aiming at short and medium range.