On Wednesday WTOP’s Mark Segraves reported that handgun sales will officially start in the District next Tuesday, Sept. 9 — just in time for primary election day! There are still no gun stores inside city limits, so the only guns that have been registered in D.C. so far were either registered under the amnesty program or were being stored out-of-state, since federal law requires that new gun purchases must either originate from or be transferred…