The Transportation Security Administration found more than 2,000 firearms at the nation's airports last year — the overwhelming majority of them loaded, the Department of Homeland Security said today.

TSA agents discovered 2,212 firearms — or a little more than six a day — in carry-on bags; 83 percent of them were loaded, the department said.

The number was a 22 percent increase from 2013, when 1,813 firearms were discovered. The number of firearms discovered at TSA checkpoints has risen nearly every year since 2005.

Also last year, the department said, more than 1,400 "firearm components, replica firearms, stun guns, and other similar dangerous objects were discovered" in carry-on luggage.

The top five airports for firearms discoveries are: Dallas/Fort Worth International (120 firearms), Hartsfield-Jackson Atlanta International Airport (109), Phoenix Sky Harbor International Airport (78), Houston's George Bush Intercontinental Airport (77) and Denver International Airport (70).

Agents discovered not just small firearms, but a grenade and an assault rifle (unloaded) with three loaded magazines.

"In many cases, people simply forgot they had these items," the TSA said in its blog reviewing the data.

Agents also found a disassembled .22-caliber gun in a carry-on bag at New York's John F. Kennedy International Airport. The gun's various components were found hidden inside a PlayStation 2 console. Agents also stopped a 94-year-old man who tried to enter the checkpoint at New York's LaGuardia Airport with a loaded .38-caliber revolver clipped to his belt.

Other interesting discoveries: