A seven-shot revolver introduced in 1895, designed and produced by Belgian industrialist Léon Nagant for the Russian Empire, chambered for propietary 7.62×38mmR ammunition. It has a unique gas seal system that allows the revolver to be properly suppressed.
Reloading is notoriously slow because shell casings should be manually removed with its ejector rod before inserting new cartridges one by one. The cylinder cannot be opened.
This tag implicates revolver (learn more).