About M4A4 | Magnesium
The M4A4 | Magnesium in Factory New is the classified M4A4 with the cool-tone metallic-aesthetic illustration at FN — refined industrial-pattern design with bold colour relationships across the receiver.
Why FN matters on Magnesium
The Magnesium design depends on the cool-tone colour relationships and the fine metallic detail. FN preserves both at peak clarity. The M4A4 receiver gives the design generous visible canvas.