Skip to main content

Heckler & Koch · Pistol

HK P7K3

Blowback (semi-automatic) · .380 ACP · introduced 1988

Also known as P7 K3, P7K3

About the HK P7K3

The HK P7K3 is a compact semi-automatic pistol produced by Heckler & Koch, a shortened member of the P7 family chambered in .380 ACP. Unlike the larger 9mm P7 variants, which use a gas-delayed blowback system, the P7K3 operates on straight blowback with a removable barrel and a sealed hydraulic recoil buffer to tame recoil. It retains the P7 family's signature squeeze-cocking mechanism, in which the front strap lever cocks the striker when the grip is squeezed and decocks it automatically on release. Interchangeable barrel, slide and magazine kits allow the same frame to fire .380 ACP, .32 ACP or .22 LR, all with an 8-round magazine.

The P7's squeeze-cocking action was developed for the West German police pistol trials of the 1970s that followed the 1972 Munich Olympics attack. The P7K3 miniaturized the concept into a pocketable .380 handgun, trading the gas-delayed blowback of its 9mm siblings for a simpler blowback action with a hydraulic buffer.

HK P7K3 specifications

General

Type
Pistol
Action
Blowback (semi-automatic)
Firing mechanism
Striker-fired
Trigger
Single action
Calibres
.380 ACP
Magazine capacity
8 rounds
Magazine
Detachable box magazine

Dimensions

Barrel length
96 mm (3.8 in)
Overall length
160 mm (6.3 in)
Height
125 mm (4.9 in)
Width
29 mm (1.1 in)
Weight (empty)
0.82 kg (1.80 lb)

Barrel

Rifling
Right hand

Materials

Barrel
Steel
Receiver / frame
Steel
Slide
Steel
Finish
blued

Performance

Muzzle velocity (typical)
280 m/s (919 fps)
Muzzle energy (typical)
240 J (177 ft·lb)
Effective range
25 m

History

Introduced
1988
Discontinued
1994
Production status
Discontinued
Country of origin
DE
Designer
Helmut Weldle

Features

  • Squeeze cocker
  • Hydraulic recoil buffer
  • Removable barrel
  • Caliber conversion
  • Fixed barrel

Safety

  • Squeeze cocking lever
  • Automatic striker decock

Conversion kits allowed the P7K3 to switch between .380 ACP (9x17mm) and .32 ACP (7.65mm) by swapping barrel and magazine, and to .22 LR by additionally swapping the slide. Produced in relatively small numbers, it is a sought-after collector piece.

This is a variant of the HK P7.

Similar models

This site uses cookies and similar technologies to improve your experience, analyse traffic and serve relevant ads. By continuing to use GunBuy, you consent to our use of cookies. See our Privacy Policy for details.