A break-open revolver prototype from Russia intended for export. High close-in damage and headshot multiplier with low ranged damage and a fast rate of fire.
–In-game description

MP412 REX angled

MP412 REX cte

Weapon Type Secondary Weapon
Weapon Class Revolver
Rank Prerequisites Rank 4
Damage 56 → 28
Range 65 max → 100 min
MP412 REXgraph


Hip Accuracy


Sight Accuracy


Magazine Size 6
Ammo Reserve 42
Fire Modes Semi
Rate of Fire 600 RPM

TTK (Time to Kill) 0.00 s
Head & Body Multiplier
per bullet/pellet
Max (65 studs) Min (100 studs)
(x2.5) Head 140 70
(x1.4) Torso 78.4 39.2
(x1) Arms and Legs 56 28
Red color signifies a fatal hit.
Suppressed Stats
Suppressor/Bullet Attachment Suppressed Damage Suppressed Range
Armor Piercing 56 -> 23.33333 0 max -> 100 min
Hollow Point 46.66666 → 33.6 65 max → 100 min
Muzzle Velocity 1500 studs/s
Penetration Depth 0.5 studs
Suppression 0.2


Hipfire Camera Recovery Speed 18
Sight Camera Recovery Speed 20
Weapon Recovery Speed 23
Weapon Recoil Damping 0.65


Min Camera Kick (3.00, -0.61, -0.31)
Max Camera Kick (4.00, -0.11, 0.30)
Min Recoil Displacement (0.50, 5.59, 11.19)
Max Recoil Displacement (0.80, 6.09, 13.80)
Min Recoil Rotation (36.20, 5.00, -0.31)
Max Recoil Rotation (37.29, 11.19, 0.30)
Hipfire Spread Factor 0.20
Hipfire Recovery Speed 5
Hipfire Spread Damping 0.70


Min Camera Kick (2.29, -0.61, -0.31)
Max Camera Kick (2.79, 0.10, 0.30)
Min Recoil Displacement (2.40, 3.50, 7.19)
Weapon Shot Displacement (2.59, 4.69, 7.80)
Min Recoil Rotation (23.00, 5.19, -14.31)
Max Recoil Rotation (27.50, -7.00, -16.30)
Sight Magnification 1.7x


Reload Time 4.4 seconds
Empty Reload Time 4.4 seconds
Equip Speed 16
Aiming Speed 20
Crosshair Size 30
Crosshair Spread Rate 500
Crosshair Recover Rate 15


Weapon Walk Speed 15 stud/s
Aiming Walk Speed 8.4 stud/s
Ammo Type .357 Magnum
Round in Chamber None
Shot Suppression Range None

List of Attachments

Optics Kills Required
Z-Point 10 Kills
H&K Sight 20 Kills
EOTech XPS2 45 Kills
Delta Sight 70 Kills
MARS 70 Kills
EOTech 552 85 Kills
Mini Sight 110 Kills
C79 125 Kills
Comp Aimpoint 130 Kills
PK-A 165 Kills
M145 185 Kills
PKA-S 225 Kills
PSO-1 Scope 240 Kills
Reflex Sight 285 Kills
Kobra Sight 320 Kills
Super Slim Sight 350 Kills
Coyote Sight 380 Kills
ACOG Scope 430 Kills
VCOG 6x Scope 455 Kills
Pilad 3 500 Kills
TA33 ACOG 650 Kills
Barska Electro 750 Kills
OKP-7 900 Kills
DDHB Reflex 1200 Kills
TA11 ACOG 1750 Kills
TA01 ACOG 2500 Kills
Animu Sight 4500 Kills
Furro Sight 5000 Kills
Full Ring Sight 50 Kills
Half Ring Sight 90 Kills

Underbarrel Kills Required
Flashlight 0 Kills

Barrel Kills Required
Compensator 120 Kills
Muzzle Brake 175 Kills
Flash Hider 100 Kills

Other Attachments Kills Required
Laser 20 Kills
Hollow Point 2000 Kills
Armor Piercing 1000 Kills

The MP412 REX is a Russian Revolver. It is unlocked at rank 4, or can be purchased with credits.


The MP412 REX (Revolver for EXport. Russian: МР-412 РЕКС) is a Russian double-action revolver. It is designed by IZHMECH and is chambered in the .357 Magnum. As its name suggests, the REX was designed for export. Its unique design allows it to automatically eject shells at once when it is reloaded due to its break-action chamber.

However, the production of the revolver was never at its full throttle due to market issues. As a result, only prototypes were created in the late 1990s. America was the biggest buyer on revolvers until US President Bill Clinton made the decision to make an agreement with Russia to stop importing firearms to the US. This conclusively brought REX's business to a downfall.[1]

The MP412 was unique in that it had a break-open frame rather than a swing-out cylinder design of most modern revolvers and a composite bottom frame consisting of steel with a polymer envelope. It weighs in at 0.9kg and has a barrel length of 6 in (153 mm). Many revolver buyers view the design as inferior because the break-action design being seen as not as strong as the more modern swing-out cylinder design which is inherently stronger, having a solid top instead of a top latch.[1]


General Information

The MP412 REX is a high damage secondary weapon, being a two-shot kill (2SK) in close-quarters-combat (CQC) and a 1SK to the head up until around 70 studs. At the end of its damage drop-off, the weapon becomes a 4SK—slightly better than the likes of the M9 or G17, but in terms of raw minimum damage, it is the weakest revolver available. However, this has no difference in shots to kill (STK) requirements when compared to the second weakest revolver, the Mateba 6.

The range is also the worst in the revolver category by a small margin. Damage drop-off begins at 65 studs and stops at 100 studs, giving it the worst maximum range in-class. However, this does not dramatically affect performance at longer ranges, compared to the likes of the Desert Eagle L5 and Mateba 6.

Rate of fire (RoF) is quite good for a high damage weapon, at 600 RPM—faster than the Deagle 44, and the 1858 New Army, but slightly slower than the Mateba which fires at 650 RPM. Magazine capacity is identical to all revolvers at six rounds. Reload time is the worst in-class, at 4.4 seconds, tied with the Saiga-12U's empty reload.

The MP412 REX has a very high recoil value, kicking sharply upwards before returning to the center. It is notable that the recoil kicks quite high but also has a high recoil recovery speed, meaning it will return to its original firing position much more quickly than other weapons. Firing the REX at its maximum fire rate will result in the weapon being harder to control and subsequently hit a target, but this is often only reserved for close-quarters-combat (CQC), where quickly discharging the weapon is often a useful tactic in such close environments.

Usage & Tactics

The REX is best used up close for headshots when it is a 1SK, but can be used over longer ranges. Though not dealing as much damage as the Deagle, it is much faster-firing, making it better at close range. The REX is a good choice to use alongside sniper rifles and designated marksman rifles, as it can kill extremely quickly at close ranges, compensating for the lack of practicality in the aforementioned weapon types.

The player can treat the weapon the same as the Deagle, but with a faster RoF; the only drawbacks are that it has a slower reload and higher recoil. The best way to eliminate enemies more efficiently is to fire the weapon as accurately as one can at the head. The player should watch their ammunition count, however, running out of ammunition can pose a difficult situation as the reload is not very quick, and the weapon can only pick up ammo from other revolvers, the Deagle, and the 1858 Carbine. Since it is a revolver, it cannot carry a chambered round, making 6 rounds the maximum amount of ammo in the gun.

Firing multiple shots in quick succession is not recommended with this gun, as the muzzle flash and recoil will make it almost impossible to land a successful shot after the first two bullets. Instead of quickly emptying the entire cylinder of the REX, one should fire a few (2-3) shots in quick succession. This is usually enough to kill an opponent in close range. This allows for better ammo conservation and less dangerous situations when several enemies are rushing against the user, preventing the threat of needing to reload.


Overall, the MP412 REX is fairly similar to the Deagle but has higher damage and RoF at the cost of higher recoil and lower capacity. This entails a higher risk but a higher reward: If the user has good aim and can control the recoil, the faster fire rate and damage can help with dispatching enemies more quickly—a miss, and the long reload and small magazine size will severely punish the user if they cannot get to cover.

Pros & Cons


  • Low unlock level.
  • High close-range damage—a 1SK to the head up close.
  • High damage per second (DPS).
  • Surprisingly high RoF.
  • Fairly quick recoil recovery.
  • No empty reload penalty.


  • Long reload time.
  • Unable to chamber an extra round.
  • Highest amount of recoil rotaton in class.
  • Small capacity - fourth-smallest in the secondary weapon category, tied with all revolvers and behind all Other Secondary Weapons.
  • High ammunition consumption rate.
  • Cannot attach suppressors.


  • Previously, the reload animation depicts the rounds in the cylinder to be manually ejected out via gravity, which is incorrect, as the rounds in real life eject automatically, "springing" out of the cylinder when it is opened. As of update 3.13.0, the animation was changed to accurately depict the ejection mechanism.
  • Despite being an available attachment in-game, a Flash Hider would not work with the REX in real life for the same reason suppressors do not: the chamber gap between the cylinder and the barrel.
  • The REX is designed to use with the .357 Magnum round, but it can also use the .38 Special.
  • The REX in real life can only fire up to 200 RPM, which is the average of a double-action revolver.
  • The REX was never put into production.
    • However, unspecified amounts of non-production models are occasionally made for Russian Spetznaz units needing a powerful sidearm for when the MP-443 Grach or Makarov PM is deemed underpowered.
  • The REX in-game is reloaded with a speed loader; it lets the user load all six rounds at once.
  • While reloading, all the casings are ejected out of the gun, even during a tactical reload when some ammunition is still left inside the weapon. However, this is only cosmetic, as the ammunition left inside is not lost during the reload.
  • Despite the REX and the Deagle using different calibers in-game, the .357 Magnum and .44 Magnum cartridge respectively, both can pick up ammunition from one another.
    • This is likely due to the Deagle having been previously classified as a Revolver in-game before being changed to a Pistol, yet the coding for ammunition pickup remained the same. 
  • 'Rex' in Latin means 'King', even though the REX in the name meant "Revolver for Export".
  • The barrel in-game is slightly longer than the barrel in real life.
  • The REX was the first revolver to be added to the game.


  1. 1.0 1.1
Primary Weapons

Assault Rifles

AK12 - AN-94 - AS VAL - SCAR-L - AUG A1 - M16A4 - G36
M16A3 - AUG A2 - FAMAS F1 - AK47 - AUG A3 - L85A2
HK416 - AK74 - AKM - AK103 - TAR-21 - M231 - Type 88-2
C7A2 - G11K2

Personal Defense Weapons

MP5K - UMP45 - G36C - MP7 - MAC10 - P90 - MP5
Colt SMG 633 - L2A3 - MP5SD - MP10 - MP5/10 - Uzi - M3A1
AUG A3 Para - Krinkov - PPSh-41 - FAL Para Shorty
PP-19 Bizon - Kriss Vector - MP40 - X95 SMG - Tommy Gun

Light Machine Guns

Colt LMG - M60 - AUG HBAR - MG36 - RPK12 - L86 LSW - RPK

Sniper Rifles

Intervention - Remington 700 - Dragunov SVU - AWS - BFG 50
AWM - TRG-42 - Mosin Nagant - Dragunov SVDS - Hecate II
M107 - Steyr Scout - WA2000


M4A1 - G36K - M4 - L22 - SCAR PDW - AKU12 - Groza-1
AK12C - Honey Badger - SR-3M - Groza-4 - MC51SD
FAL 50.63 Para - 1858 Carbine - AK105 - Jury - KAC SRR
X95R - HK51B

Designated Marksman Rifles

MK11 - SKS - SL-8 - VSS Vintorez - MSG90 - Beowulf TCR

Battle Rifles

Beowulf ECR - SCAR-H - AK12BR - G3 - AG-3 - Henry 45-70
FAL 50.00


KSG-12 - Remington 870 - DBV12 - KS-23M - Saiga-12
Stevens DB - AA-12 - SPAS-12

Secondary Weapons Pistols

M9 - G17 - M1911 - Desert Eagle L5 - M45A1 - Five Seven
ZIP 22 - Desert Eagle XIX

Machine Pistols

G18 - 93R - TEC-9 - Micro Uzi - MP1911


MP412 REX - Mateba 6 - 1858 New Army - Redhawk 44
Judge - Executioner


Serbu Shotgun - SFG 50 - Sawed Off - Saiga-12U - Obrez

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