In 1992, Heckler & Koch introduced the MP5/10 (chambered in 10mm Auto) and MP5/40 (chambered for the .40 S&W cartridge), which are based on the MP5A4 and MP5A5.
1991. godine Heckler & Koch je predstavio modele MP5/10 (sa streljivom 10mm Auto) i MP5/40 (sa streljivom .40 S&W) koji se temelje na inačicama MP5A4 i MP5A5.