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Mk23 Quotes Live2D
Gun Information
Full name Heckler & Koch MK 23
Country of origin Germany
Manufacturer Heckler & Koch
Game Information
Faction Griffin & Kryuger
Manufactured /
Revised by
Voice actor Akao Hikaru
Artist 雪樱樱
Released on CN, TW, KR, EN (Gr Mk23), JP (Gr Mk23)
Chibi Animation

Click the marked area to switch between animations. For details regarding animations, please see Animations on the Wiki.

How to obtain[edit]

NORMALHEAVY Timer 0:50:00. See T-Doll Production for details.

DROP 4-3E, 5-3, 5-1E, 6-1, 6-1E, 7-3, 7-1E, 8-3, 9-1, 9-1E, 10-5, 11-4, 11-3E

REWARD Not obtained as a reward

Exclusive Equipment[edit]

There is no exclusive equipment for this T-Doll.

Stats / Data[edit]

40(x1)80(x1) / 400(x5) 10(x1) / 30(x5) 10(x1) / 30(x5)
11 29
9 66
7 53
Rate of Fire
 Rate of Fire
44 64
Movement Speed
 Move Speed
Critical Hit Rate
 Crit. Rate
Critical Hit Damage
 Crit. Damage
Armor Penetration
 Armor Pen.
Icon slot Accessory.png Icon Telescopic Sight S 2star.png Icon Holographic Sight S 2star.png
Icon Red Dot Sight S 2star.png Icon Night Combat Equipment S 2star.png
Icon Silencer S 2star.png
Icon slot Magazine.png Icon Armor-Piercing Ammo S 2star.png Icon HP Ammo S 2star.png
Icon Shotgun Ammo S 2star.png
Icon High-Velocity Ammo S 2star.png
Icon slot Doll.png Icon Microchip S 2star.png Icon Exoskeleton S 2star.png
Icon Ballistic Plate S 2star.png Icon Camo Cape S 2star.png
Icon Ammo Box S 2star.png

Affects all guns
Increases damage by
18%(x1) / 22%(x2) / 27%(x3) / 31%(x4) / 36%(x5)

Weapon Background[edit]

The Heckler & Koch Mark 23 (also called MK23, MK 23 MOD 0, US SOCOM MARK 23) is a semi-automatic large-frame pistol chambered in .45 ACP. It was made under the request of the United States Special Operations Command (USSOCOM) as an "Offensive Handgun Weapon System" (OHWS): a handgun capable of being used as a primary weapon under harsh conditions by special forces personnel.

Heckler & Koch began developing the MK23 in 1991 and was adopted by USSOCOM in 1996, beating its rival the Colt OHWS. Delivery of the pistols began in May of 1996 to US Navy SEALs and other special operations forces.

The MK23 underwent three test iterations before it was adopted. Phase I had a bulky Laser Aiming Module (LAM) and a shrouded suppressor, as well as a slide locking mechanism. Phase II had a slimmer LAM and non shrouded suppressor, removed the slide lock, and beveled the magazine well. The Phase III or Mod 0 model removed the front slide serrations, attached a Knights Armament Company (KAC) suppressor, and a LAM made by Insight Technology.

A civilian version of the MK23 was later sold by Heckler & Koch, named the Mark 23.[1]


Main artwork

Gallery consisting of artworks used primarily in-game.

Alternative artwork

Alternate gallery consisting of artworks with slight alterations as well as miscellaneous artworks.


  • Most of the US Navy SEALs operators disliked the MK23, as it was too large and bulky (it has almost the same dimensions as the IMI Desert Eagle). They later ditched the weapon in favor of the SIG P226 and other 9mm handguns.
  • MK23 uses the prototype Phase II MK23 with front slide serrations in almost all of her artwork, which wasn't actually used by USSOCOM. Her "Impish Sweetheart" artwork corrects this by giving her the proper Phase III Mod 0 model with no front serrations.
  • The GFL community nicknamed her Nyaa23, or Nyan23 (喵23.
  • The MK23 is a favored sidearm of Solid Snake, the protagonist of the Metal Gear series of tactical stealth action games.