Remember when Gilbert Arenas averaged 28 points and 6 assists per game? That was six years ago. Last night, Agent Zero was arrested after being busted with a truckload illegal fireworks. Seriously.
Law enforcement sources tell us Arenas was pulled over by Califorrnia Highway Patrol around 2:30 AM in Los Angeles for speeding in a Ford pickup -- but officers immediately saw that the truck was filled with fireworks ... sitting in plain sight in the bed and cab of the truck.
We're told Arenas was arrested and will be booked for possession of illegal fireworks, and cited for speeding -- he was allegedly doing 80 mph -- and driving without a license.
It's unclear exactly how much fireworks were in the truck, but it was enough that LAPD bomb squad was called to handle the illegal booty.
Our camera guy counted around 20 boxes being unloaded ... very carefully.
Arenas -- whose last NBA team was the Memphis Grizzlies in the 2011-12 season -- was infamously busted for gun possession when he brandished a loaded pistol in his Washington Wizards locker room back in 2010.
Dude has trouble with things that go boom.
Arenas played pro ball in China this past season and most recently has been seen hooping in the Drew League in Los Angeles.
That epic July 4 celebration he may, or may not, have been planning is now clearly a no go.