Revell of Germanys 1/32 Bf 109 K4 shows where to drill holes in top of wing for them and to make them out of stretched sprue.Hence my question on their operation
What is clear part R3.It goes on the undeside of the left wing and looks like a square light lens. They have you attach part M11 to the center of it. M11 is a long antenna looking thing.Thanks.