The Nagant Brothers Belgian Nagant M1878 Gas-Seal is a belgium-made double-action revolver chambered in 9.4mm Belgian, introduced in 1878. Primary use: self_defense, law_enforcement. Type: Revolver Action: Double-Action Caliber: 9.4mm Belgian Capacity: 6 Year introduced: 1878, Belgium Weight: 32 oz Overall length: 9.5" Status: Discontinued Military use: Yes Intended use: self_defense, law_enforcement