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Alternate name(s) KM UMP45
Price $1700
$1200 Csgo
Origin Germany flag Germany
Caliber .45 caliber
Magazine capacity 25 / 100
Firing mode(s) Automatic
Rate of fire 571 RPM
666 RPM Csgo
Weight (loaded) 2.27 kg
Projectile weight 15.2 g
Muzzle velocity 1005 ft/s
Muzzle energy 625 J
Used by Terrorists
Reload time 3.5 seconds
Movement speed
(units per second)
230 Csgo
Kill Award $600 (Competitive)
$300 (Casual)
Damage 35
Recoil Control 20 / 26 (76%)
Accurate Range 15m
Armor Penetration 65%
Penetration Power 100
Hotkey B-3-3
Entity weapon_ump45

The misunderstood middle child of the SMG family, the UMP45's small magazine is the only drawback to an otherwise versatile close-quarters automatic.
―Official description

The UMP-45, or KM UMP45, as it was previously known, is a submachine gun featured in the Counter-Strike series.


The UMP-45 is a moderate submachine gun available to both teams. Most players tend not to use it because of its low-medium damage and penetration. It also has the lowest rate of fire out of every SMG (although the fire rate has been greatly increased in Global Offensive). For those reasons, the UMP45 is very uncommon among players, usually being replaced by the MP5 or P90. Currently in Global Offensive it costs $1200 instead of $1700.


CS 1.6, CS:CZ and CS:S
Hitbox Primary Attack
Unarmored Armored
Head 117 59
Chest & Arm 29 14
Stomach 37 18
Leg 21 21
Red signifies a fatal hit.
Hitbox Primary Attack
Unarmored Armored
Head 140 90
Chest & Arm 35 22
Stomach 43 28
Leg 25 25

Red signifies a fatal hit.

The UMP-45 is a fairly light weapon. While wielded, the player's movement speed is 250 units per second, meaning they suffer no speed reduction. In Global Offensive, this was lowered to 230. The UMP-45 is one of the many weapons that have the ability to shoot underwater.


  • Lightweight
  • Cheap
  • Fairly accurate at long ranges
  • High damage
  • High kill reward (in CS:GO)
  • Low recoil


  • Low penetration power
  • Low rate of fire
  • Long reload time
  • Small magazine size
  • Not effective for ambushing



  • Spray at full-auto when at close to medium range, while strafing. The UMP's spray pattern climbs up and to the right after the first three shots, then further up and hard to the left after the about the sixth. Count out a fast "One, two, three" when you fire; fire at the head starting at "one," pull down and left at "two," putting your crosshair on your target's bicep, and at "three" pull diagonally down across their torso to the waist and hold the crosshairs just to the right of their body. This should ensure at least one headshot and multiple body hits.
    • In Source, spraying at someone at medium range is not recommended. If you do want to take your opponent quickly, crouch to increase your chances of winning. Close-range spray is still useful and if a headshot is scored, the opponent will go down quickly.
    • In Counter-Strike 1.6 and Condition Zero, the UMP-45 performs better at range compared to other Sub-machineguns, the user should keep a short distance because many other weapons with higher rate of fire can outgun you at close proximity.
  • At medium range, 2 shot bursts are effective (particularly when crouched), in older games only.
    • If you encounter other SMG, shotgun, rifle, and pistol users, retreat to medium ranges to engage them. For inexperienced users, they may spray bullets with automatic weapons, thus you may be a harder target to hit if you maintain distance in which the UMP-45 is a little superior to other SMGs in terms of accuracy.
    • Remember to reload often, as the low damage of the UMP may need to use the entire magazine to kill an enemy at medium range. This weapon has a small magazine capacity and will take a while to reload.
  • If a group of opposing team members have visual contact of you from a far distance, it is possible to strafe, aim at the chest, neck, or head, and fire at your targets. Due to the low recoil and acceptable accuracy, it is possible to score a few headshots.
  • Hide if any snipers spot you or avoid common sniper spots entirely.
  • Like the MP5, the UMP-45's effective range is higher than other SMGs. Avoid firing many rounds, as it does have recoil like all weapons.
  • Try to avoid contact with rifle and SMG users at close range.
  • When in very close combat, circle-strafe the enemy. This will bring a greater chance of victory, since the UMP has almost no movement penalty (in earlier games).
  • If you run into multiple enemies at close, retreat ASAP. You should have at least a teammate if you want to deal with them, the rate of fire and the magazine capacity of your gun is not fast and high enough to bring them all down before they kill you.
  • Because it has a low price tag, a UMP-45 user can normally afford to buy equipment, such as grenades. This can offset any advantage the enemy has to some extent.
  • Make sure to take advantage of the UMP's cheap price tag in Global Offensive ($1200) by bringing a decent pistol to compensate for its lower magazine capacity and limited range.
  • Avoid engaging group of enemies, due to the UMP's low magazine size, low rate of fire, and slow reload speed.
  • Try to take your target by surprise as the UMP has lower firepower and rate of fire compared to most other weapons. If you attack first before the opponent knows where you are, you should kill him before he kills you.
  • In Global Offensive, the fire of rate and damage of the UMP-45 has increased but the submachine gun is now less accurate and has higher spread. Nevertheless, strafing and burst firing are essential tactics when using the UMP-45.
    • Unlike many other weapons in CS:GO, the UMP-45 has both a low price-tag and high kill reward. If you can handle the gun well, this is a good way to gain money quickly.


  • Use long range weaponry, specifically rifles, against UMP-45 users.
  • Use a flashbang and either quickly eliminate UMP-45 users or gain distance from them.
  • Wield another SMG or a weapon that has a faster rate of fire. Shotguns like the XM1014 or the Nova are excellent to counter the UMP-45 at close proximity. However, it requires some skill because if you miss, the opponent may counter your strategy.
    • Since a UMP-45 user can be effective while moving, a user may decide to move constantly in attempt to dodge fired buckshot pellets. As such, avoid using a pump shotgun if the enemy is aware of your tactics. 
  • If caught by a UMP-45 user at close range, keep strafing. Because of the low magazine size and lengthy reload time, users may have a hard time in spraying bullets while maintaining accuracy.
    • This tactic may force them to use sidearms, the low price tag of the UMP-45 means they are likely to pack a powerful pistol. So you still need to be cautious when they pull a pistol out, especially in CS:GO.


KM UMP45 Expert css KM UMP45 Expert
Kill 1,000 enemy players with the KM UMP45.

Weapon Specialist
UMP-45 Expert csgo UMP-45 Expert
Kill 250 enemies with the UMP-45.


Condition ZeroEdit

In Tour of Duty, there are 3 bots that use the UMP-45 as their main weapon. Tthey are:

  • Quincy: Cost 1 (with the P228 as a secondary weapon) (CT)
  • Floyd: Cost 1 (with the USP as a secondary weapon) (CT)
  • Crackpot: Easy (with a random secondary weapon, but he never uses it) (T)

Deleted ScenesEdit

The UMP-45 has appeared in some missions in Deleted Scenes, mainly because it has moderate performance in combat (although it has inferior performance compared to the MP5 and that weapon only appeared twice.); as a primary weapon, the UMP-45 has an acceptable performance against normal enemies, but the player will be at disadvantage when fighting groups of enemies. The UMP-45 appears in the following missions:

  • Lost Cause: As a starting loadout.
  • DrugLab: Found inside a house nearby the second drug machine.
  • Thin Ice: Found beyond a locked door that has to be opened by the blowtorch, just located next to the starting point.
  • Hankagai: Secretly found beyond a locked door. However, it cannot be opened and requires noclip. Oddly, a box of full ammo can also be found in that room.


Main article: UMP-45/Gallery


  • The file name for this weapon on the database is ump45.
  • Prior to Global Offensive, this weapon shared its ammo reserves with the KM .45 Tactical.
  • In most Counter Strike games, the fire selector switch is either set at safe or the single shot, thus it should be impossible to fire at full-auto. This is fixed in Global Offensive.
  • In Condition Zero, the UMP-45 has a muzzle break.
  • The texture for the UMP model in Counter-Strike 1.6 has a magazine cutout to expose the cartridges contained within. However, the texture was static, meaning the magazine would still appear to be full after the player had fired the weapon.
    • In later versions of Counter-Strike, including Deleted Scenes, the transparent magazine texture is no longer present.
    • In Global Offensive, the transparent magazine texture returns but the weapon is tilted at an angle in which the player cannot see it clearly (unless you are reloading or inspecting the UMP-45).
  • Prior to Source, The UMP-45 was slightly larger in first person view.
  • In some old Global Offensive menu screens and related media, a Counter-Terrorist operative is seen wielding an UMP-45 with an EO-Tech sight. However, this is not present in the game.
  • The Global Offensive version of the UMP-45 has its rate of fire slightly increased, but it's still the slowest-firing SMG in game.
    • Prior to Global Offensive, the UMP-45 fired slower than the AK-47 despite the weapon having the same RPM (600).
  • The achievement "UMP-45 expert" is the least gained weapon achievement out of all weapons in Counter-Strike: Source and excluding equipment, it is the second least achieved in Global Offensive.
  • The real life UMP-45 fires from a closed bolt firing system, which results in excellent first shot accuracy and pretty good medium to long range when tap or burst firing.
    • Due to this, the UMP-45 has replaced the MP5 as the weapon of choice by some special forces such as the German GSG-9 and more recently the British SAS.

External linksEdit

  • UMP45 at Wikipedia.
  • UMP45 at Counter-Strike Online Wiki.

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