Call of Duty Wiki
Call of Duty Wiki
The subject of this article appeared in Call of Duty: Black Ops III. The subject of this article appeared in Zombies mode The subject of this article appears in Call of Duty: Black Ops 4 The subject of this article appears in Blackout The subject of this article appears in Call of Duty: Mobile

For the predecessor, see Peacekeeper.
For a similarly named lever-action rifle, see MK2 Carbine.

The Peacekeeper MK2 is an assault rifle featured in Call of Duty: Black Ops III, Call of Duty: Black Ops 4 and Call of Duty: Mobile.

Call of Duty: Black Ops III

"Full-auto assault rifle. Highest mobility in class, with moderate damage and accuracy."
— Description

The Peacekeeper MK2 was added in Call of Duty: Black Ops III in July 28, 2016 update. It is obtainable from Supply Drops in the Black Market.


The Peacekeeper MK2 is the successor to the Peacekeeper from Call of Duty: Black Ops II. The most notable change being that the Peacekeeper MK2 is an Assault Rifle, while the original Peacekeeper is a Submachine Gun. Other changes include a slightly higher magazine size, slower rate of fire which it makes up for with a slightly higher amount of damage, faster reload time, and longer range.


The Peacekeeper MK2 appears in Revelations, and can be acquired from the Mystery Box. It comes equipped with a BOA 3, FMJ, and High Caliber by default.

When upgraded via the Pack-a-Punch Machine, it becomes the Writ of Shamash.

Peacekeeper MK2 vs Writ of Shamash

Peacekeeper MK2 Writ of Shamash
Peacekeeper MK2 Zombies BO3.png Writ of Shamash BO3.png
Damage 120-70 170
Multiplier head: x6
chest: x1
abdomen: x1
Fire mode Automatic Automatic
Rate of fire 652 RPM 652 RPM
Magazine size 32 64
Max ammo 352+32 512+64
Mobility Moderate High
Extras Extended Mags, higher damage, more reserve ammo


For attachment images, see Peacekeeper MK2/Attachments.
For camouflage images, see Peacekeeper MK2/Camouflage.

Call of Duty: Black Ops 4

"Full-auto assault rifle. Superior handling with high rate of fire."
— Description

The Peacekeeper MK2 returns in Call of Duty: Black Ops 4 as the Peacekeeper. It was added with the Days of Summer continuation of the Operation Spectre Rising update.


  • Ammo (Blackout): 5.56mm
  • Operator Mod: None


The Peacekeeper is a versatile weapon in many aspects. Taking the form of an assault rifle, the Peacekeeper has the mobility of most submachine guns in the game while offering the damage output and low recoil similar to the ICR-7 while having a fire rate similar to the Maddox RFB. However, the Peacekeeper struggles at longer ranges because of its fire rate, making it more ideal for medium engagements, although the Grip can be used to help reduce recoil if the player attempts to use the Peacekeeper to pick off an enemy from a distance. The Peacekeeper's arsenal of attachments also benefits more for mobility as opposed for damage, as High Caliber and FMJ are absent unlike most of the other assault rifles in its class. However, the Peacekeeper has the option for both the standard and II versions of the Quickdraw and Stock, allowing players to treat the weapon as a submachine gun for closer engagements. The Peacekeeper also accepts Rapid Fire, allowing the Peacekeeper to benefit at closer ranges against other submachine guns while the Hybrid Mags can allow the Peacekeeper to reload faster.


The Peacekeeper is available in the Mystery Box for 950 points on all maps. When upgraded via the Pack-a-Punch Machine, it becomes the Writ of Shamash gaining increased damage, double the base magazine size and 512 reserve ammo.


The Peacekeeper was added to Blackout, and can be acquired from a Blackjack Stash in limited time modes after the player acquires it from Reserves. It uses 5.56mm ammunition.





Call of Duty: Mobile

"Fully automatic assault rifle. Superior handling and high rate of fire."
— Description

The Peacekeeper MK2 returns in Call of Duty: Mobile. It was added as part of the Season 13 Wint3r War update.


The Peacekeeper MK2 has a consistent four-hit-kill range at 11 meters, which is tied with the HBRa3. The Peacekeeper MK2 has a unique attachment list compared to the rest of the armory.

The Peacekeeper MK2 can equip the Well Forged Barrel, which increases the base range by 50% without a negative. The Task Force Barrel also increases range by 50% with an increase in the base fire rate from 652 to 720 RPM, but with two severe downsides, with vertical recoil increasing by 20% and horizontal recoil by 15%. The Built-in Silencer barrel is equipped with an integrated suppressor, with a range increase of 25%. Long Range Barrel increases the range value by 100% and reduce ADS Bullet Spread by 20%, but increases ADS time by 35% and reduces movement speed by 5%. The Rapid Fire Barrel increases the fire rate from 652 to 740 RPM, increases base damage from 26 to 31, increases ADS Bullet Spread by 20%, but offers a range reduction of 40%.

The ADS time for the Peacekeeper MK2 is 285ms, slightly below average in its class. The Firm Grip Tape reduces ADS time by 25% with a 90% flinch reduction, with a caveat of increasing Sprint-to-fire delay by 15%. Despite this, the Peacekeeper has the fastest Sprint-to-fire delay in its class by default, at 150 milliseconds.

Aim down sight movement speed is slightly below average at 39%, with the base movement speed at 92%. The Lightweight perk can be formidable with this weapon. The Agile Stock is a viable choice for the Peacekeeper, increasing ADS movement speed by 40% with the Sprint-to-fire delay decreased by 30%. However, the Agile Stock comes with a downside of a 24% increase to the hip fire spread.

The magazine size of the Peacekeeper MK2 is 25 rounds, smaller than most peers in the class. As such, an Extended Mag is a suitable choice to mitigate this weakness.

The recoil of the Peacekeeper MK2 is moderate to low. The recoil pattern is similar to the KN-44, however the gun kicks horizontally slightly stronger than the KN-44. The Peacekeeper MK2 has the highest accuracy in the Assault Rifle class with a bullet spread accuracy score of 7.46, surpassing the GKS. The Foregrip attachment decreases horizontal recoil by 30% with no caveats.

Battle Royale

The Peacekeeper MK2 is available in Battle Royale. It deals normal damage and features mediocre rate of fire, but boasts high accuracy at range. It also features absurd range and has the mobility of a submachine gun. The gun is available on floor as Rare and Epic blueprints, while the Legendary blueprint, is obtainable from Airdrops or certain high tier loot zones.






Rear Grip







  • Blast Off
  • Divine Presence
  • Golden Talon
  • Runic Fire
  • Moon Glow
  • Debris Field
  • Spine Rattle
  • Plasma Explosion


  • Crustpunker


  • Artifact


Call of Duty: Mobile

  • The Peacekeeper MK2 has two completely different firing sound, one in high pitch (aim down sight) and the other in low pitch (hip fire). The high pitch sound can be turned on by using the 1-tap ADS button. If the player is using an independent ADS button and firing button at the same time, the low pitch sound will remain.