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The subject of this article appears in Call of Duty: Black Ops 4 The subject of this article appeared in Zombies mode The subject of this article appears in Blackout The subject of this article appears in Call of Duty: Mobile
For similarly named weapons, see KSG, SKS, and VKS.

The GKS is a submachine gun featured in Call of Duty: Black Ops 4 and Call of Duty: Mobile.

Call of Duty: Black Ops 4

"Full-auto submachine gun. Low recoil with high accuracy at range."
— Description


  • Ammo (Blackout): .45 Cal
  • Operator Mod: Quad Shot
  • Country of Origin: Santa Monica, CA, USA





The GKS appears in the zombie maps Voyage of Despair, IX, Blood of the Dead, and Classified, where it's available on the wall for 1300 points and as a weapon within the Mystery Box for 950 points. When upgraded via Pack-a-Punch Machine, it becomes the Ghoul Keeper's Subjugator with the magazine size increased to 52 rounds and its ammo reserve increased to 312.


Call of Duty: Mobile

"Fully automatic submachine gun. Low recoil with high accuracy at range."
— Description

The GKS returns in Call of Duty: Mobile. It was added as part of the Season 5 Steel Legion update.


The GKS received a damage buff recently, turning it into a close to mid range shredding machine. It acts as a small assault rifle rather than a SMG, due to the fact that it has no negative multipliers to the whole body, making it extremely consistent compared to the rest of its class. Its damage does drop off at 30m, however that can be improved with Gunsmith.

Aim down sight time is 260ms, slightly slower than average. However, it has the best accuracy in the game and second best range in its class. From 0-20m, it takes 4 shots to kill, which is noticeably better than many ARs and all SMGs in the game. However the 5 shot kill range is only 30m, and past 30m the gun will take 6 shots to kill. This 5 shot range is actually shorter than the Razorback, however the GKS has much faster handling compared to the Razorback.

Iron sight is extremely clear like its Black Ops 4 counterpart, an optic is only optional.

Magazine size is 25 rounds, lower than average. But it also has one of the best attachment lists in the game, the 32 round fast mag has no downside and the 40 round Extended Mag only reduce movement speed by 1%, which is hardly noticeable.

With season 9: Conquest, it received the first adjustment, headshot went from 1.1x to 1.3x, base damage was increased from 25 to 28, which means when hitting two headshot at every range will reduces the shot to kill by one.

With season 1: New Order (2021), it received the second adjustment, reload time was reduced from 2.15 seconds (base mag) to 1.8 seconds and from 3.12 seconds to 2.5 seconds (dry reload).

Battle Royale

The GKS has great hipfire spread and high accuracy at mid range. It also sports high damage at close range. It comes as Common and Epic blueprints.






Rear Grip







  • Snake Bite
  • Scion
  • Blue Mercury
  • Pack Warrior
  • Kitsune
  • Sakura Storm
  • Tank Wheels
  • SMH at my SMG
  • Heat Extractor
  • Damascus


  • Tactical Unicorn
  • Wanderer



Call of Duty: Black Ops 4

  • The GKS originally featured circular iron sights, similar to the MX9.
  • According to Will Huang, the GKS is a SWAT counter-terrorism rifle.