The first major Spanish semi-automatic pistol design, adopted by the Spanish Army in 1921. The Astra 400 used an unusual unlocked blowback system and could also chamber 9mm Steyr, 38 ACP, and 9mm Browning Long cartridges. Type: Pistol Action: Semi-Automatic Caliber: 9mm Largo Capacity: 8 Year introduced: 1921, Spain Weight: 35.5 oz Overall length: 9.8" Status: Discontinued Military use: Yes Intended use: Military Service, Law Enforcement