The AutoMag was the first commercially produced large-bore semi-automatic pistol, chambered in the proprietary .44 AMP cartridge created specifically for it. Designed by Max Gera, it used a rotary bolt long-recoil operating system unlike any other pistol of its era. Type: Pistol Action: Semi-Automatic Caliber: .44 AMP Capacity: 7 Year introduced: 1971, USA Weight: 57 oz Overall length: 11.5" Status: Discontinued Intended use: Hunting, Collecting