Cavalry carbine version of the Trapdoor with 22-inch barrel. Issued to mounted troops. Carbine sling bar on left side. Used at the Battle of Little Bighorn and throughout the Indian Wars. Type: Rifle Action: Single-Shot Caliber: 45-70 Govt Capacity: 1 Year introduced: 1873, USA Weight: 104 oz Overall length: 41.3" Status: Discontinued Military use: Yes Intended use: Military, Collector