Firearms / Pistols / H&K HK 4

H&K HK 4

General Facts

  • TYPE
    Pistol

  • ORIGIN
    Germany

  • NICKNAMES
    P11 (German police service designation)

  • DESIGNED
    1964 - 1967

  • DESIGNER
    Alex Seidel and Tilo Müller (H&K)

  • PRODUCTION
    1968 - 1984

  • PRODUCERS
    Germany - Heckler & Koch

    Licensed production:
    France - MAS

  • QUANTITY
    47.650 produced, including civilian sales

  • UNIT COST
    Unknown

  • CHARACTERISTICS
    High production quality
    Multiple interchangeable calibers
    Limited magazine size
    Small calibers with limited stopping power

Introduction

The HK 4 is a pocket-size pistol of German origin. It was the first pistol to be produced by Heckler & Koch. The name HK 4 was derived from being available in four calibers. It also was one of the first modular designs, being convertible to each of the four calibers.

Design

The HK 4 has some features of the Mauser HSc but is different in many aspects. The HK 4 is a double action pistol that uses the straight blowback principle. Besides for the grip plates the pistol is fully made out of metal. An internal slide stop mechanism is fitted, which disengages by inserting a magazine. Fixed iron sights are used for aiming.

Firepower

The HK 4 is a semi-automatic pistol and was available in four calibers. Most were produced in .380 ACP and 7.65mm Browning. The other two options are .25 ACP and .22 Long Rifle. In .380 ACP the magazine holds 7 rounds, in all other models 8 rounds.

Users

The HK 4 was mainly sold as a civilian pistol, some with a four barrel kit. As a service pistol it was adopted by the German police. About a quarter of the total production went to the German police.

Variants

HK 4

The HK 4 is a double action pocket-size pistol. The 4 in the name refers to its modular design. It can be reconfigured to any of four calibers by replacing the barrel and magazine.

TypePistol
Caliber.380 ACP
Magazine7 rounds
OperationStraight blowback, double action
Fire selector0-1
Rate of fireSemi-automatic
Barrel length85 mm
Rifling6 grooves, 254 mm right hand twist
Muzzle velocity299 m/s
Stock-
Length157 mm
Width?
Height?
Weight0.52 kg empty
SightsIron sights, fixed, blade front, notch rear
Remarks-
TypePistol
Caliber7.65x17mm Browning
Magazine8 rounds
OperationStraight blowback, double action
Fire selector0-1
Rate of fireSemi-automatic
Barrel length85 mm
Rifling6 grooves, 254 mm right hand twist
Muzzle velocity302 m/s
Stock-
Length157 mm
Width?
Height?
Weight0.52 kg empty
SightsIron sights, fixed, blade front, notch rear
Remarks-

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