I'm pondering converting over an upper to a pencil barrel. This upper normally has an Aimpoint and BUIS, and I got to wondering why am I lugging this extra weight around if I'm not using magnified optics? The red dot will be cover at least 4" at 200, so whats the use of the medium contour barrel if I'm not going to take advantage of it?
So I guess I'm asking if I'm thinking straight? And does anyone one see any real disadvantage to running a pencil profile when your main optic is a red dot (yes, I know they heat up and tend to get less accurate with sustained fire)?

