The MAG 58 designation refers to the original 1958 production configuration of the FN MAG, the most widely produced variant before subsequent military designations were assigned by user nations. The MAG 58 remains the definitive general-purpose machine gun specification used as the baseline for the M240, L7A2, and other national variants. Type: Machine Gun Action: Semi/Full-Auto Caliber: 7.62x51mm Capacity: 100 Year introduced: 1958, Belgium Weight: 417.6 oz Overall length: 49.7" Status: Active Military use: Yes Intended use: military