The G5 ME sight isn't high end because of the fibers.

Why the G5 costs what it does it in the materials, simple micro adjustments,ease of adjustment, and other features.

IMO it is one of the absolute easiest sights to adjust and lock in place. It is made of magnesium so it weighs 1/2 as much as comprable aluminum sights, Itis third axis adjustable, has built in rubber arrow bumper, Bubble level, and a few other features that and very handy.