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Selected Handgun Detail

HK
Model HK4
HK Pistol HK4 .22 LR Variant-2
Scale To:
Gun Dimensions Width:1.3-in
Length:6.2-in Height:4.3-in
Barrel:3.35-in Weight:18.3-oz
Variant 2 of 3
Gun Rankings
  • Power Factor (40 grain bullet)39240
  • Recoil Factor (40 grain bullet)0.62 ft-lb
  • Total Capacity9 rounds
  • ConcealabilityGood
  • Defense Factor43%
Gun Specifications
Type:Pistol
Produced:1971 - 1973
Caliber:.22 LR
Action:blowback operated semi-auto
Trigger:double-action (DA/SA)
Safety:slide mounted decock/safety lever
Magazine:8-round
Frame:black anodized aluminum
Grip:brown checkered plastic
Sights:fixed blade and notch
Notes:Second Variation
Manufacturer
Heckler & Koch GmbH
More Info
Gun Value
MSRP:No DataUsed Est:$725.00
Last Update:8/28/2023
About the Gun

The first pistol produced by the company, designated as the HK4 due to its modular frame design that allowed for changing the barrel, spring and magazine to accommodate four different calibers. The gun design was influenced by the Mauser Model HSc.

Cartridge Specifications
Cartridge: .22 LR
Alias: .22 Long Rifle
More Info
Ballistics for This Gun
Selected Bullet Mass:40 grains
MV:981 ft/sec ME:85 ft-lbs
About the Cartridge

The Stevens Arms Co. developed the .22 Long Rifle rimfire cartridge from the .22 Long cartridge case developed 16 years earlier, with a 40 grain round nose bullet loaded to a higher velocity than the older 29 grain .22 Long bullet. Modern .22 Long Rifle High Velocity cartridges drive a 40 grain copper-plated bullet at a muzzle velocity of 1255 fps and muzzle energy of 140 ft-lbs from a rifle barrel. This rimfire cartridge has become the most popular sporting and target shooting cartridge in the world.

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