The M9-A1 is the full-size offering in Steyr's pistol line, featuring a 4" cold-hammer-forged barrel, a high grip and an extremely low bore axis that mitigates muzzle rise, as well as a grip angle ...

The M9 (the M demarking the pistol as having a 4-inch barrel and a 17-round magazine), was soon followed by the M40 in .40 S&W and the M357 in .357 Sig.