The only British-designed semi-automatic pistol to see significant WWI military service. Unusual shape. RNAS (Royal Naval Air Service) issue. Type: Pistol Action: Semi-Automatic Caliber: .455 Webley Auto Capacity: 7 Year introduced: 1912, United Kingdom Weight: 39 oz Overall length: 8.5" Status: Discontinued Military use: Yes Intended use: Military Sidearm