Rising Sun is a mod for Mount & Blade: Warband based on the Gekokujo mod, New Update 2022 released. Set during the late Bakumatsu and Boshin War periods of Japan (1866 - 1869). Fight to restore the Imperial Court or retain the Tokugawa Shogunate.
One of the revolver types used in the Boshin War. The Savage revolver was too expensive and quickly out of the competition in the American Civil War by Remington and Colt with their more robust and cheaper designs. However for Japanese forces who didn't have standardized equipment the revolver was put into use.
Thank you Kanye, very cool!