Description Heckler & Koch GMBH Model HK-4 in.380 ACP with one, seven round removable magazine and a 3.5″ barrel. Made in Germany and Imported by HK Inc ARL VA. Checkered black composite grip. Black anodized aluminum alloy frame. Serrated blued trigger, hammer and serrated slide. Magwell located serrated magazine release. Left side of slide safety switch. Rear notch and front fixed blade sight. German Nitro proof on the slide, frame and barrel. Must ship to a FFL holder. Condition: Very Good/Excellent with light scuffs and handling wear. Clean rifled bore. Barrel Length: 3.5″ Serial: 31967 Manufacturer: Heckler & Kotch GMBH Year: 1981 Caliber: .380 ACP Model: HK4 Book# 03764