One of the later and more refined single-shot breech-loading carbines of the Civil War, using the same .56-50 Spencer cartridge as the Spencer repeater. The rotating breech mechanism was more robust than earlier designs. About 11,000 were purchased by the Union Army. The adoption of a standardized cartridge (.56-50 Spencer) alongside the Spencer repeater was a step toward ammunition logistics standardization. Type: Carbine Action: Single-Shot Caliber: .56-50 Spencer Capacity: 1 Year introduced: 1864, USA Weight: 96 oz Overall length: 36" Status: Discontinued Military use: Yes Intended use: military