Yes: https://en.wikipedia.org/wiki/Stechkin_automatic_pistol. AFAIK only still used as a PDW by combat pilots, everybody else switched to AKS74U. Based on what I heard from people who had a chance to fire it, the full auto mode is basically pointless, so it just ends up being a larger and heavier PM (ironically, it found some use in that latter role because it also means less recoil).