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Smg1 mp5k valvetime crop.png
Only known image of viewmodel[1]
Smg1 mp5k similarang2.png
Worldmodel (Similar angle)
Smg1 mp5k wmodel1.png
Basic Information
Name H&K MP5K
Faction Humans
Origin Humans
  • Rebels
  • Combine Soldiers
  • Gordon Freeman
Technical Specifications
Fire Rate Med-High
  • 3 (To you)
  • 10 (To enemies)
Accuracy 5 degrees
Fire Mode Full-Auto
Recoil Moderate
Ammo Type Medium Rounds
Clip Size 30
Max. Clips (including active) clips
Ammo on weapon pickup 30
Ammo on ammopack pickup 30
Technical Specifications (Altfire)
Fire Rate Per 6 Seconds
  • 50 (To you)
  • 100 (To enemies)
Accuracy Perfect (Curves downward)
Fire Mode Semi-Auto
Recoil Heavy
Clip Size 1
Game Information
View Model v_smg1.mdl
World Model w_smg1.mdl
Weapon Entity(s) weapon_smg1
Ammo Entity(s)
  • item_box_mrounds
  • item_box_large_mrounds
  • item_ar2_grenade
Ammo Type Medium Rounds

The MP5K is a scrapped weapon that is partially available in the Half-Life 2 Leak.


The MP5K is the predecessor to the final SMG1, eventually replaced in retail. However, in the Half-Life 2 Leak, a large portion of the weapon's files are still present, excluding the viewmodel.
The SMG1's functionality does not appear have been changed away from the MP5K's settings, as it has a number of major differences compared to retail.

  • It has 30 bullets, as opposed to 45.
  • It fires slightly slower.
  • It is much more accurate.
  • It is more damaging, dealing 10 instead of 4 damage.

Missing Viewmodel

In the leak, the viewmodel has been removed, but the textures for it remain.
As a result of this, no pictures, renders, etc. of the viewmodel were publicly available, until September 26 of 2017.

Viewmodel Picture Release

At which point, ValveTime released pictures of both the MP5K and SMG2[1], apparently originating from John Grimm's portfolio.

Prior Revisions

The current revision of the MP5k is not the only one in the files. A few others are scattered throughout.


An intermediate revision, between Jaytest and before the final MP5K. The only remnant of it is in the texture files, in materials\Models\Weapons\Obsolete\V_hkmp5k.


Much earlier than either other revisions, it seems to have been used for a test of some kind, then forgotten in the files while the non-Jaytest MP5k evolved onward.
It is likely to be from before 2001, as it is rife with Half-Life 1-esque texturing habits, naming habits (p_hkMp5k), and a comparatively low level of quality compared to most other weapon models.

More info: Jaytest

Differences between view/world models

Like with most of Valve's weapon models, the viewmodel and worldmodel have a number of visible differences.