Nationwide, 3,391 firearms were detected in carry-on bags at TSA checkpoints, or about nine per day. That represents an increase of about 28 percent from 2,653 in 2015. The agency also said 83 percent of the firearms seized last year were loaded.
It is legal to transport firearms in checked baggage if they are stowed unloaded in a hard-sided, locked case separate from ammunition, and their presence is declared to airline representatives at check-in. Travelers who try to bring firearms through TSA checkpoints can face criminal charges and civil penalties, including the confiscation of the firearm.