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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 (Original Artist);

YeoNwa (Gift in Red Velvet)

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 obtainEdit

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 EquipmentEdit


Union SkillEdit

There is no union skill for this T-Doll.

Stats / DataEdit

40(x1)80(x1) / 400(x5) 10(x1) / 30(x5) 10(x1) / 30(x5)
11 29
9 66
7 53
 Rate of Fire
44 64
 Move Speed
 Crit. Rate
 Crit. Damage
 Armor Pen.

Ranking of this Doll's specs relative to other Dolls of the same type.

Ranking of this Doll's specs relative to every other Doll.
Affects all guns
Increases damage by
18%(x1) / 22%(x2) / 27%(x3) / 31%(x4) / 36%(x5)

Weapon BackgroundEdit

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 with match grade accuracy that is capable of being used as a primary weapon under charsh conditions by special forces operators.

Heckler & Koch began developing the MK23 in 1991 and was adopted by USSOCOM and the US Navy 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. For information on how to obtain certain costumes, see Skin Catalogue.

Alternative artwork

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


  • While SOCOM operators appreciated the MK23 for its ruggedness and reliabilty, most considered it too large and heavy, as it has almost the same dimensions as the Magnum Research Desert Eagle. The MK23 was mostly replaced by the SIG SAUER P226 and other 9mm handguns, though it still remains in the SEALS armory.
  • 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 the famous handgun of Solid Snake, the protagonist of the Metal Gear series of tactical stealth action games.