HK4 H&R Import .380 ACP Compact DA/SA Pistol with .22 LR Conversion Barrel, West German Manufacture
This H&K HK4 is an H&R-imported, West German-made compact pistol from the late 1960s to early 1970s, notable as Heckler & Koch's first commercial handgun. It features the HK4's modular multi-caliber design and includes a .22 LR conversion barrel assembly with a captive recoil spring. The pistol shows H&R Worcester import markings, the circular 1871–1971 crest, and an oval caliber indicator insert marked "9 k" denoting .380 ACP.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks from prior use are visible on the exterior. Please refer to the photos for a detailed view of the surfaces and markings.
What’s Included
- Heckler & Koch HK4 H&R Import .380 ACP pistol
- 1x 8-round magazine
- .22 LR conversion barrel assembly with captive recoil spring for HK4
The HK4 embodies H&K's early commercial innovation with a modular system that allows caliber changes. This example is chambered in .380 ACP and includes a .22 LR conversion barrel assembly, underscoring the platform's versatile, multi-caliber design.
Built with a steel slide and 3.35-inch steel barrel on a hard-anodized aluminum alloy frame, the pistol uses a DA/SA blowback action with an external hammer. Black wraparound checkered grips with the HK logo provide a secure, comfortable hold in a compact footprint.
Controls and safety features include a slide-mounted manual safety, magazine safety, slide-position safety, and a firing pin pivot safety. Forward-angled slide serrations aid manipulation, and a red dot indicates the fire position.
Fixed sights consist of a small ramped front and a square-notch rear for a clear, straightforward sight picture. Disassembly is accomplished via the front trigger-guard barrel-clamp latch, a hallmark of the HK4 design.
Import and proof details include "Harrington & Richardson Inc., Worcester, Mass USA — Made in Germany" markings and the circular 1871–1971 crest. An oval caliber indicator insert marked "9 k" confirms the .380 ACP configuration, and capacity is 8+1 with the included magazine.