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Heckler & Koch Mk 23



Overview


Heckler & Koch Mk 23

Left side view of Heckler & Koch Mk 23.
Source: Heckler & Koch - © copyright lies with original owner

Origin
Germany
Type
Pistol
Entered service
1996
Status
In service
Design
1989 - 1993
Designer
Germany - Heckler & Koch
Production
1996 - present
Producer
Germany - Heckler & Koch
Designations
Mk 23 MOD 0
Mk 23 USSOCOM
OHWS / Offensive Handgun Weapon System
Design project
Mark 23
Civilian sales

Description


Introduction

The Mk 23 is a modern large caliber pistol of German origin. It was developed in the early 1990's by Heckler & Koch as a contender for the Offensive Handgun Weapon System program. This program was to supply US special forces with a pistol powerful and accurate enough to be used as both an offensive and backup weapon. Despite its qualities the size and weight meant that other types of pistols remained in US special forces service alongside the Mk 23. The Mk 23 forms the basis for the highly succesful USP pistol, introduced 2 years later.

Design

The Mk 23 is a large high quality short recoil double action pistol. It has a long barrel with polygonal rifling and muzzle threaded to accept a suppressor. The Mk 23 pioneered the use of a polymer frame, which houses a double stack magazine and accessory rails. The suppressor and laser aiming module were developed specifically for the Mk 23.

Firepower

The Mk 23 fires the powerful .45 ACP round from 12 round magazines. When introduced this was considered a high capacity magazine in this caliber. The subsonic nature of the .45 ACP makes it ideal for use with a suppressor. Accuracy of the Mk 23 is reported to be very good. Around 4 MOA can be expected at 50 meters, making the Mk 23 more practical for use beyond 25 meters than most other combat pistols.

Users

The Mk 23 was adopted by US SOCOM and was issued to various US special forces units. Various special forces units around the world adopted the Mk 23 in small numbers. Nowadays the Mk 23 remains available, but more practical alternatives are favored. These include newer Heckler & Koch products such as the USP Tactical and HK 45.

Details


Heckler & Koch Mk 23

Heckler & Koch Mk 23 with KAC suppressor and LAM attached.
Source: Heckler & Koch - © copyright lies with original owner

The Mk 23 is a large combat pistol that looks very similar to the more commonly used Heckler & Koch USP. The most visible differences from the USP are the longer slide and frame. No true variants of the Mk 23 were made, although markings and frame color changed over the years. Unlike the USP, which is available in various sizes and calibers, the Mk 23 is only available in .45 ACP.

Facts Mk 23
General
Origin
Germany
Type
Pistol
Caliber
Caliber
.45 ACP
Magazine
12 round detachable box
Barrel length
149 mm
Rifling
pylogonal rifling, 381 mm right hand twist
Muzzle velocity
260 m/s
Operation
Action
Short recoil
Fire selector
0 - 1
Rate of fire
Semi-automatic
Dimensions
Length
245 mm
421 mm with KAC suppressor
Width
39 mm
Height
150 mm
Weight
1.2 kg empty
1.47 kg loaded
2.29 kg loaded with suppressor and LAM
Sights
Type
Iron sights, adjustable precision sights
Sight radius
195 mm
Accessories
Muzzle
Threaded muzzle for KAC suppressor
Rails
Custom accessory rail for Laser Aiming Module (LAM)

Media