Union Switch and Signal Company produced M1911A1 pistols under WWII emergency contract. Lowest production numbers of any major WWII 1911 contractor — under 56,000 units. Very collectible. Type: Pistol Action: Semi-Automatic Caliber: 45 ACP Capacity: 7 Year introduced: 1943, USA Weight: 39 oz Overall length: 8.25" Status: Discontinued Military use: Yes Intended use: Military, Collector