HK-32 Prototype in 7.62x39mm
The HK-32 prototype, chambered in 7.62x39mm, showcases Heckler & Koch's naming convention where '3' denotes a select-fire shoulder rifle and '2' indicates the caliber. This roller-delayed blowback system is a unique development, diverging from the typical AK-pattern rifles chambered in this intermediate cartridge. Early prototypes featured a curved magazine to accommodate the cartridge taper, with later trials exploring AK magazines.









