WASHINGTON — The Transportation Safety Administration is on tempo this 12 months to once more break the file for the variety of weapons intercepted at airport safety checkpoints, underscoring a persistent problem for safety officers amid brisk gun gross sales in the US.

Thus far this 12 months, T.S.A. officers have already found greater than 4,600 weapons at airport checkpoints, and about 87 % of them have been loaded, based on the company. Final 12 months, the T.S.A. discovered almost 6,000 weapons at airport checkpoints, which itself was a file. The variety of weapons found at safety checkpoints has been trending upward for greater than a decade, with the one lower coming through the pandemic.

The slew of weapons discovered on the nation’s airports this 12 months have come as air journey in the US is nearing a return to prepandemic ranges. Gun gross sales within the nation have surged in recent times, suggesting that some vacationers could also be unfamiliar with the principles for carrying firearms whereas touring by airplane.

“Coming into a checkpoint with a firearm, significantly a loaded one, is an costly mistake,” mentioned Carter Langston, a T.S.A. spokesman.

When a gun is discovered at a checkpoint, the T.S.A. doesn’t seize it. As a substitute, brokers are instructed to name legislation enforcement to deal with the scenario. There isn’t a federal prison penalty for passengers caught with a gun at a checkpoint, however the T.S.A. can impose a advantageous of as much as about $14,000 and the lack of PreCheck membership — which permits for expedited safety screening — for as much as 5 years.

Potential prison fees, if any, differ by state. In Texas, legislation enforcement officers usually inform vacationers to get out of line, lock their weapons of their automobiles and return to attempt to catch their flights. In New York, nevertheless, the invention of a gun at a checkpoint will almost certainly finish with the passenger in handcuffs.

The severity of any prison fees may differ primarily based on whether or not the particular person has a allow to hold a hid weapon. In Florida, for instance, somebody with a concealed-carry allow stopped at an airport checkpoint might be charged with a second-degree misdemeanor. A passenger with out one might face a felony for carrying a hid weapon.

Weapons have been found at 268 of the nation’s airports final 12 months, based on the T.S.A., and the ten airports with the most important variety of them have been all within the South or the West. Hartsfield-Jackson Atlanta Worldwide Airport led the nation with 507 weapons discovered.

Final 12 months, a gun was by chance discharged at a checkpoint on the Atlanta airport, inflicting a panic amongst vacationers. And this spring, Consultant Madison Cawthorn, Republican of North Carolina, was briefly detained by the police after making an attempt to carry a loaded gun by means of airport safety in Charlotte — the second time in somewhat over a 12 months that he had been discovered with a gun at an airport checkpoint.

Whereas weapons can’t be introduced onto planes in carry-on baggage, they’re allowed to be transported in checked baggage. These firearms should be unloaded and locked in a hard-sided case.

Aidan Johnston, the director of federal affairs for Gun House owners of America, a gun rights group, mentioned that many passengers discovered with weapons at airport checkpoints have been in a pressured state as a result of they have been touring and won’t have been excited about the placement of their gun. He recommended that the rise in weapons discovered at checkpoints might be pushed partially by first-time gun house owners who is probably not aware of the principles of touring with a firearm.

Mr. Johnston mentioned he didn’t assist states’ punishing vacationers for an trustworthy mistake, however he inspired gun house owners to tackle the accountability of training themselves concerning the T.S.A.’s necessities.

“I feel gun house owners ought to exit and be taught the principles for take a firearm from one place to a different and take a firearm by means of an airport,” Mr. Johnston mentioned.

Shannon Watts, the founding father of Mothers Demand Motion, a gun management group, mentioned the rise in weapons discovered at airports was “the logical results of file gun gross sales and states weakening gun security legal guidelines with excessive insurance policies like permitless carry, which encourage weapons wherever, for anybody, no questions requested.”

The T.S.A. has tried to do extra to maintain weapons from getting previous safety checkpoints. In March, the company introduced that it was investing about $780 million in CT X-ray scanners that might assist it higher detect weapons, explosives and different objects by creating 3-D photos of carry-on objects.

The problem has additionally come below scrutiny on Capitol Hill. At a listening to in February, Consultant Bonnie Watson Coleman, Democrat of New Jersey, referred to as for the T.S.A. to discover further methods to discourage vacationers from bringing weapons to airport safety checkpoints. She mentioned the rise in unruly passengers and the rise in weapons at airports have been a “poisonous mixture.”

Ms. Watson Coleman, the chairwoman of the Home Homeland Safety Committee’s subcommittee on transportation safety, has proposed laws meant to handle the uptick in weapons discovered at checkpoints. Her invoice would set up minimal fines for repeat or severe violations and require elevated signage at airports to warn passengers towards bringing firearms by means of safety screening.

In a press release, Ms. Watson Coleman cited the incident on the Atlanta airport final 12 months and added, “If nothing is finished, it’s only a matter of time till tragedy happens and lives are misplaced.”