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The subject of this article appears in S.T.A.L.K.E.R.: Shadow of Chernobyl. The subject of this article appears in S.T.A.L.K.E.R.: Clear Sky. The subject of this article appears in S.T.A.L.K.E.R.: Call of Pripyat.

The UDP Compact[1] is a .45 ACP pistol that appears in S.T.A.L.K.E.R.: Shadow of Chernobyl, S.T.A.L.K.E.R.: Clear Sky, and S.T.A.L.K.E.R.: Call of Pripyat.

Appearances[]

Shadow of Chernobyl[]

A reliable weapon. As a quality compact close-range weapon, it is very popular among the Zone veterans.
Shadow of Chernobyl in-game description

The UDP Compact has significantly better firing rate compared to other .45 caliber pistols and very light, weighing less than 1.00kg.

However the UDP seems to be susceptible to jamming, which makes it slightly unreliable in extended firefights.

Acquisition[]

In Shadow of Chernobyl, the UDP is heavily employed by veteran and Expert Freedom members as their sidearm and sold exclusively by Skinflint.

It can also be obtained from the stash Goodies in the safe in the Red Forest.

It is used as a sidearm by the following characters: Barin from Duty, Charon from the Monolith, Father Diodor of the Loners, Leshiy, Lukash and Murk from Freedom.

Clear Sky[]

This trustworthy weapon boasts German quality and reliability. The compact short-range weapon is especially popular with the Zone's veterans. Uses .45 ammo.
― In-game description

In Clear Sky, the UDP Compact is used by expert members of Freedom and some experienced members of the Mercenaries and veteran Loners . It is still very light, weighing at less than 1.0kg and its magazine can be expanded by 4 bullets to have a total of 12 bullets per magazine. It has a better firing rate than other .45 caliber pistols and retains a degree of accuracy and power, though not as powerful nor as accurate as a Kora-919. Most technicians can upgrade the weapon.

Acquisition[]

It is sold only by Ashot, though one can salvage one early in the game while fighting the mercenaries in the Dark Valley. The player can only buy this pistol from Ashot after attaining a friendly reputation with Freedom. It can be retrieved from the Dangerous stash in the Red Forest.

Upgrades[]

The UDP Compact shares the same upgrades as all pistols.

Upgrades marked in green are accuracy upgrades, while those marked in red are rate of fire upgrades. They are mutually exclusive.

SCS Pistol Upg 1
Bolt mechanism modification (750 RU)
CS RoF Fire rate +25%
A technological modification of the bolt mechanism allows for a higher rate of fire.
SCS Pistol Upg 2
Bolt mechanism modification (750 RU)
CS Kickback Recoil -20%
Careful adjustment of the bolt mechanism increases the weapon's precision.
SCS Pistol Upg 9
Barrel modification (1125 RU)
CS Kickback Recoil -50%
Installing a muzzle brake allows recoil to be reduced significantly.
SCS Pistol Upg 10
Barrel replacement (1125 RU)
CS Flatness Flatness +30%
An upgrade for weapons with integrated silencers. Replaces the combined barrel and silencer with a solid barrel.
SCS Pistol Upg 3
Barrel modification (750 RU)
CS Wpn Weight Weight -20%
Careful adjustment of the bolt mechanism increases the weapon's precision.
SCS Pistol Upg 4
Barrel replacement (750 RU)
CS Flatness Flatness +20%
This durable steel barrel resists deformation and allows for better bullet acceleration.
SCS Pistol Upg 5
Soft trigger (750 RU)
CS accuracy Accuracy +20%
A smooth trigger pull allows firing accuracy to be increased.
SCS Pistol Upg 6
Anatomical grip (750 RU)
CS accuracy Accuracy +20%
Tailor-made ergonomic grip designed specifically for you.
SCS Pistol Upg 8
Extended magazine (750 RU)
CoP MagCap Mag. size +4
Increasing magazine capacity using improvised means.

Unique variants[]

  • .223 pistol - an unused variant of the UDP Compact chambered in .223 FMJ that is found in the game files. It is a reference to the namesake weapon from Fallout 2.

Call of Pripyat[]

Impeccable reliability and durability combined with excellent accuracy are the main noteworthy features of this weapon. Its minor drawbacks include its considerable size, relatively high center of gravity and massive bolt, which make it difficult to conceal but do not outweigh the weapon's positive features. The weapon is especially popular with the Zone's veterans.
Call of Pripyat in-game description

In Call of Pripyat, the UDP Compact is one of the pistols that can be modified to have a new firing mode – in this case, fully automatic. It is the only .45 caliber pistol with this upgrade. It can also mount a silencer.

Acquisition[]

The UDP Compact is used by Mercenaries, Loners, Freedom and sometimes even Zombified Stalkers. All of the mercenaries encountered during the side mission Kopachy carry it as their sidearm.

The UDP Compact is sold by Hawaiian after obtaining the achievement A Friend of Duty, and by Owl after obtaining the achievement One of Ours.

Notable users:

Upgrades[]

SCOP UDP Compact Upg 1
Moving bolt section (600 RU)
CoP RoF Fire rate +10%
Provides an increase in rate of fire without overloading other parts through additional recoil.
SCOP UDP Compact Upg 6
Polymer recoil buffer (1000 RU)
CoP Kickback Recoil -20%
A small buffer that takes on some of the recoil.
SCOP UDP Compact Upg 7
Increased bolt movement (1000 RU)
CoP Flatness Flatness +20%
By increasing bolt movement and reinforcing the return mechanism appropriately, you can improve flatness.
SCOP UDP Compact Upg 13
Fully automatic firing mode (3000 RU)
CoP automode Automatic fire mode
Modernization of the pistol's automatic parts suitable for automatic fire.
SCOP UDP Compact Upg 2
Long barrel section (600 RU)
CoP Flatness Flatness +10%
Replacement of a regular barrel with a longer one improves accuracy and flatness, but reduces the rate of fire.
SCOP UDP Compact Upg 8
Installation of a barrel with a simplified rifled section (1000 RU)
CoP RoF Fire rate +15%
A simplified rifled part is useful for close quarter combat where the emphasis is on the rate of fire rather than accuracy.
SCOP UDP Compact Upg 9
Chrome plating of the internal side of the barrel (1000 RU)
CoP Reliability Reliability +15%
Chrome plating improves the barrel's life cycle.
SCOP UDP Compact Upg 14
Sinusoidal rifling of barrel (1400 RU)
CoP RoF Fire rate +25%
Allows barrel heat to be reduced and increases the rate of fire without sacrificing flatness.
SCOP UDP Compact Upg 3
Titanium frame (600 RU)
CoP Reliability Reliability +10%
An expensive frame for a weapon that will serve a long time.
SCOP UDP Compact Upg 10
Changing handle shape with a straight rear section (1000 RU)
CoP Handling Handling +15%
A change in the rear section makes for a more ergonomic handle shape.
SCOP UDP Compact Upg 11
Amortization handle (1000 RU)
CoP Kickback Recoil -20%
An amortization handle reduces recoil.
SCOP UDP Compact Upg 15
A handle with a changed shape with replaceable plates (1400 RU)
CoP Kickback Recoil -30%
The possibility of choosing a suitable plate makes for a more ergonomic handle shape.
SCOP UDP Compact Upg 4
Double trigger firing mechanism (600 RU)
CoP accuracy Accuracy +10%
The trigger is armed by the first shot, with all other shots occurring during automatic trigger arming.
SCOP UDP Compact Upg 12
Modular firing mechanism (1000 RU)
CoP Reliability Reliability +15%
A modular firing mechanism provides easier maintenance and parts replacement, as well as certain improvements in ease of use.
SCOP UDP Compact Upg 16
Installation of an arming component (1400 RU)
CoP accuracy Accuracy +30%
The arming component considerably reduces the amount of pressure required on the trigger, improving accuracy.
SCOP UDP Compact Upg 5
Increased magazine capacity (1600 RU)
CoP MagCap Mag. size +4
Magazine capacity increase without increasing weapon part length.

Unique variants[]

  • March - a unique UDP Compact sold by Nimble, said to have belonged to Wolfhound. It features lower recoil and higher accuracy than the stock UDP Compact.

Sounds[]

Shadow of Chernobyl Clear Sky Call of Pripyat
Draw
Holster
Shoot
Empty
Reload
Close

Gallery[]

Shadow of Chernobyl[]

Clear Sky and Call of Pripyat[]

References[]

  1. UDP can mean the following: 1) universelle dauerhaft Pistole - "universal durable pistol", 2) universelle Deutsche Pistole - "universal German pistol".
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