The Fourth Circuit does not have official pattern instructions. However, a set of
unofficial criminal instructions and annotations, authored by former AUSA Eric Wm. Ruschky and annually updated by law professor Miller W. Shealy, Jr., is posted in PDF format on the District of South Carolina Web site. I just noticed that the annual revision (dated November 1, 2020) is posted there now. These instructions and annotations are of particular value, even outside the Fourth Circuit, because they cover crimes that the official sets don't.