LEGO MARVEL | Iron Man MK4 Bust 76327. This 436-piece model recreates Iron Man’s MK4 armour from Marvel Studios’ Iron Man 3 with 2 articulated air brakes, 2 deployable micro-missile launchers and a rotating head. The base has a nameplate and Iron Man minifigure. Measures approximately 17 cm high, 17 cm wide and 8 cm deep.